LIBRARY CONSTRUCTION ARCHITECTURE, FITTINGS AND F U R N I T U R E F. J. BURGOYNE LONDON GEORGE ALLEN, 156, CHARING CROSS ROAD 1897 [All rights reserved"] P r i n t e d by BALLANTYNE, HANSON & At the Ballantyne Press Co EDITOR'S INTRODUCTION T H E development of libraries during the latter part of the nineteenth century may be compared with that of cathedrals and abbeys in Norman times, or that of colleges and grammar-schools under the Tudors. In all these cases the age, instinctively discerning its needs, partly by public effort, partly by private munificence, covered the land with edifices for their satisfaction. In so doing it necessarily gave rise to a number of architectural problems. That the libraries of the present day, however smaller in scale, may not be architecturally less honourable to their epoch than the corresponding constructions of the past, must be the earnest aspiration of all who regard them as among the characteristic monuments of the nineteenth century, and a most important manifestation of its intellectual activity. This ideal is the more difficult of attainment, inasmuch as obstacles now exist which were comparatively unfelt in the Middle Ages. The mediaeval pious founder was frequently his own architect; at all events, paying the piper, he called the tune. In any case, there was a thorough community of feeling between him and the builders he employed. The builder was thoroughly broken Vlll EDITOR'S INTRODUCTION in to his task, and entirely absorbed in i t ; since, from the inevitable slowness of mediaeval operations, arising from the deficiency of capital and labour, the erection of an abbey or a college might be the sole occupation of a lifetime. Far different is it now, when the most extensive architectural undertakings seldom require more than three or four years, and the same architect is equally ready to turn out a church, a library, a theatre, or a bank. It is inevitable that in the absence of special knowledge of and special devotion to a particular style of edifice, the sentiment of architectural display should gain the upper hand. Hence a continual conflict between the architect who desires a handsome elevation, and the librarian who aims at practical convenience ; frequently determined by a committee endowed with no great feeling for either. Parodying a famous saying, it may be safely affirmed that this state of things will continue more or less until architects are librarians, or librarians architects. It is, meanwhile, a very useful service to bring the parties together as near as may be, by the simple exhibition of what has been done ; showing how difficulties have been met, and objects attained, occasionally even how they have been missed. Mr. Burgoyne has performed this service for both professions in this little volume, destined, in the Editor's judgment, to rank among the most valuable contributions hitherto made to library literature. By copious illustration, indicative of extensive research, he has shown how the problems EDITOR'S INTRODUCTION IX incident to the accommodation of books, and the adaptation of all parts of a library to the public service, have been actually dealt with in the most civilised parts of the world. Librarians and architects are thus supplied with a number of models to choose from, and abundant hints for further development from the combination of the best points of existing edifices. With this will be found much valuable counsel respecting the organisation of a library in so far as the material fabric is concerned, including in this definition furniture and fittings, mechanical aids to efficiency, and protection from fire and other perils. One important feature of a work like this is that it enables us in a manner to codify the maxims already deduced from experience. It will be found that there are many points upon which librarians are practically unanimous ; arrangements common to most of the leading libraries here described, other arrangements which they practically concur in rejecting. Such observations may be developed into a code of rules, extending gradually by experience, until, allowing for the inevitable differences in the special needs of the various libraries, all important points have the sanction of general consent. It is impossible to enumerate such details within the limits of a preface. One cardinal rule may be laid down, always to design with reference to the probable future of the library. If it is destined to perpetual insignificance, no particular provision is necessary; but if to a great expansion, this should be foreseen and provided for from the X EDITOR'S INTRODUCTION first. A generous view should be taken of such a library, ample space for additions should be secured, and the plan should be so framed that any future accretion should be a legitimate and harmonious development of the original model. So liberal a procedure, however, is only practicable when and where the public library has established itself in the public consciousness as an institution of paramount importance. American libraries are planned on a larger scale than the British, and with more complete appliances, because the library and the librarian are more regarded in America than here. It rests with librarians themselves, and with national instructors generally, to raise the British conception to the American standard, and with the public itself to demonstrate the inadequacy of the existing libraries by copious resort to them. Should this come to pass, the subject of library architecture will gain greatly in importance, and as the nineteenth century has been an age of construction, the twentieth may prove one of reconstruction. R. GARNETT. PREFACE T H I S book has been written in the hope that it will be of service to those librarians, architects, and members of library committees, who have in hand the planning of new libraries, or the adaptation of existing buildings to library purposes. As this is the first treatise written upon the subject, it cannot fail to have imperfections; but the numerous plans with which it is illustrated must prove of great value to all interested in the subject. Some of them have been specially drawn for this work, and others, more especially those of continental buildings, have been copied from works not often to be found in British reference libraries. The aim of the book has been the strictly practical and useful, and accordingly technicalities have been avoided as far as possible. My most cordial thanks are due to many librarians and architects for information freely given, and the loan of plans and blocks for the illustrations. FRANK J. BURGOYNE. T H E TATE LIBRARY, BRIXTON OVAL, S.W. xi CONTENTS CHAPTER I PAGE THE EARLY LIBRARIES—SITES—ALCOVE AND STACK METHODS OF STORING BOOKS—ARRANGEMENT OF THE ROOMS—PLAN, ELEVATION, AND FACADE- DECORATION—DANGER OF FIRE, AND THE NECESSARY PRECAUTIONS—FLOORING . . . I-25 CHAPTER II NATURAL AND ARTIFICIAL LIGHTING—HEATING AND VENTILATION 26-38 CHAPTER III METHODS OF SHELVING BOOKS—DR. POOLE'S PLAN FOR A LARGE LIBRARY—STORAGE CAPACITY OF A ROOM —CONSTRUCTION OF METAL—BRITISH MUSEUM BOOKCASES IN SLIDING WOOD AND BOOKCASE— SHELVING FOR FOLIOS—VIRGO'S BOOKCASE 39~72 CONTENTS XIV CHAPTER IV PAGF THE ELLIOT, COTGREAVE, DUPLEX, MORGAN, SIMPLEX, CHIVERS, AND BONNER INDICATORS—CARD - CATALOGUES—BULLETIN BOARDS—THE TELEPHONE AND TELAUTOGRAPH—PHOTOGRAPHY . . . 73~94 CHAPTER V FURNITURE AND APPLIANCES : TRUCKS, LADDERS, STEPS, BOOK-LIFTS, TABLES, EASELS, BOOK SUPPORTS, NEWSPAPER AND MAGAZINE RACKS, CHAIRS, NEWSPAPER STANDS, DUSTING MACHINES, ETC. 95~I27 CHAPTER VI THE BRITISH MUSEUM 128-T40 CHAPTER VII BRITISH PUBLIC LIBRARIES : ABERDEEN, BELFAST, BIRMINGHAM, BLACKBURN, BOOTLE, BRISTOL, CHELTENHAM, DARLINGTON, DERBY, DUBLIN, EDINBURGH, GLASGOW 141-166 CHAPTER VIII BRITISH PUBLTC LIBRARIES (continued) '. LIVERPOOL, MANCHESTER, NEWCASTLE - UPON - TYNE, PRESTON, ST. HELENS, WIDNES, WIGAN, WORCESTER , . 167-189 CONTENTS XV CHAPTER IX PAGE LONDON PUBLIC LIBRARIES : THE TERSEA, BERMONDSEY, GUILDHALL, BISHOPSGATE BAT- INSTITUTE, CAMBERWELL, CHELSEA, CLAPHAM, CROYDON, EDMONTON, HAMMERSMITH, HAMPSTEAD . . 190-217 CHAPTER X LONDON PUBLIC POPLAR, ST. LIBRARIES GEORGE'S {continued) (HANOVER : LAMBETH, SQUARE), ST. M A R T I N - I N - T H E - F I E L D S , STREATHAM, WEST HAM, WESTMINSTER 218-238 CHAPTER XI AMERICAN LIBRARIES: BOSTON, LIBRARY OF CON- GRESS (WASHINGTON), THE MERCANTILE LIBRARY ASSOCIATION OF NEW YORK . . . . 239-266 CHAPTER XII AMERICAN LIBRARIES {continued) : THE NEWBERRY LIBRARY (CHICAGO), BUFFALO, MINNEAPOLIS, CORNELL UNIVERSITY PRATT INSTITUTE LIBRARY, MILWAUKEE, THE (BROOKLYN), THE PEABODY IN- STITUTE (BALTIMORE) 267-292 CONTENTS XVI CHAPTER XIII PAGE EUROPEAN PARIS ; LIBRARIES : BIBLIOTHEQUE BIBLIOTHEQUE ST. NATIONALE, GENEVIEVE, PARIS ; STADT-BIBLIOTHEK ZU FRANKFURT ; UNIVERSITATSBIBLIOTHEK ZU HALLE ; THEK ZU LEIPZIG ; UND LANDES-BIBLIOTHEK ZOGL-BIBLIOTHEK UNIVERSITATS - BIBLIO- KATSERLICHE UNIVERSITATS- IN STRASSBURG ; HER- ZU WOLFENBUTTEL ; T H E VAL- LIANO LIBRARY AT ATHENS . . . . 293-313 APPENDIX LISTS OF ILLUSTRATIONS OF LIBRARIES, WHICH HAVE APPEARED IN THE " AMERICAN ARCHITECT," "ARCHITECT," " B R I T I S H ARCHITECT," " B U I L D E R , " AND " B U I L D I N G N E W S " 314-326 INDEX 327-336 LIST OF NATIONAL LIBRARY ILLUSTRATIONS OF I R E L A N D , DUBLIN, ELEVATION Frontispiece FIG. Page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 2 3 4 1 0 11 20 46 51 52 52 54 55 56 58 59 61 Interior of the Bodleian Library, Oxford . . . . Plan of the old library at Wolfenbuttel . . . . Santa's plan for a library . . . . . . . Plan of a library arranged on the alcove system . . . Plan of the same area shelved on the stack system . . Plan of the Konigl.-Bibliothek, at Stuttgart . . . Dr. Poole's plan for a library . . . . . . T h e T o n k s ' s h e l f fitting Shelf fitting in use at the new Record Office . . Library Bureau shelf-pin . . . . . . Chivers'automatic shelf-bracket . . . . . . Chivers' wedge shelf-bracket . . . . . Library Bureau steel book-stack . . . . . . Halle University Library, section through stack-room . Halle University Library, section through bookcases . . Greifswald University Library, section through stack-room . Gottingen University Library, construction of bookcase and gallery . . . . . . . . . 18. Halle University Library, step and iron floor . . 19. Amsterdam University Library, iron floor . . . . 20. British Museum, sliding press . 21. Strassburg University Library, shelving for folios . . 22. British Museum, folio supports . . . . . . 23. British Museum, portfolio case for maps . . . . 24. Bibliotheque Nationale, Paris, table-shelf . . . 25. T h e Elliot indicator 26. T h e Cotgreave indicator . . . . . . . 27. T h e Cotgreave indicator book . . . . . . 28. T h e Simplex indicator 29. T h e Chivers indicator . xvii 62 63 6 4 6 6 68 68 6 9 70 75 77 79 83 84 XViii FIG. LIST O F ILLUSTRATIONS PAGE 30. T h e Chivers indicator, enlarged . . . . . . 85 31. Card-catalogue cabinet . . . . . . . 88 32. Card-catalogue drawer 90 33. Lambert's magazine frame, with movable titles . . . 91 34. Book-truck from the University Library at Gottingen . . 96 35—37- Cotgreave's automatic steps 97~99 38. Library Bureau step . . . . . . . 100 39-41. Metal book supports 101-103 42. T h e Crocker book brace 103 43. T h e Barrett wire book support . . . . . . 104 44. Book-lift in use in the British Museum . . . . 105 45. Cable book-carrier in use at the Library of Congress . . 106 46. Reader's desk in use at the British Museum . . . 108 47. Reader's desk in use at the British Museum, movable portion 109 48. Library Bureau magazine rack . . . . . .111 49. Cotgreave's wall rack for magazines . . . . .112 50. Cotgreave's table-rack for small magazines . . . .113 51. Library Bureau table-rack . . . . . . . 114 52. Bowry's newspaper file, open . . . . . .115 53. Bowry's newspaper file, closed . . . . . 54. The Banbury newspaper file . . . . . 55. Walker's book-rack and slip-sorter . . . . 56. Ladder from the Royal Library, Brussels 57. T h e Victor ladder . . . . . . . 58. Table-easel from the Newcastle-upon-Tyne Public Library 59. Table-easel from the University Library, Gottingen . 60. Table-easel for copying . . . . 6 1 . Heathcote revolving newspaper-holder 62. Lambert's newspaper clip . . . . 63. Chivers newspaper-holder . . . . 64. Harvey dusting machine . . . . 65. British Museum, plan of Reading-room and Library . 66. Aberdeen Public Library, plan of lending department 67. Blackburn Public Library . . . . . . 68. Bootle Public Library and Museum, plan of ground floor 69. Edward Pease Library, Darlington, plan 71. National Library of Ireland, Dublin, plan of ground floor 72. National Library of Ireland, Dublin, plan of first floor 73. National Library of Ireland, Dublin, section through building LIST O F ILLUSTRATIONS FIG. 74. National Library of Ireland, Dublin, section through bookcase . . . . . . . . . . 75. Edinburgh Public Library, plan of lending department 76. Edinburgh Public Library, plan of reference department 77. Mitchell Library, Glasgow, plan of ground floor . 78. Mitchell Library, Glasgow, plan of first floor 79. Manchester Central Library, plans . . . . . 80. Manchester, Gorton Branch Library, plans . . . . 81. Manchester, Openshaw Branch Library, plans 82. Newcastle-upon-Tyne Public Library, plan of ground floor . 83. Newcastle-upon-Tyne Public Library, plan of first floor 84. Gamble Institute, St. Helens, elevation . . . . 85. Wigan Public Library, plan of ground floor 86. Victoria Institute, Worcester, plan of library 87. Guildhall Library, London, interior . 88. Battersea Central Library, plan of ground floor . 89. Battersea Central Library, plan of first floor 90. Bishopsgate Institute, London, plan of ground floor . 91. Camber well Central Library, plan . . . . . 92. Chelsea Central Library, plan of ground floor 93. Chelsea Central Library, plan of first floor . . . . 94. Croydon Central Library, plan of the lending department . 95. Edmonton Library, plan of ground floor . 96. Edmonton Library, plan of first floor . 97. Passmore Edwards Public Library, Plammersmith, elevation 98. Passmore Edwards Public Library, Hammersmith, plan 99. Hampstead Central Library, plan . 100. T a t e Central Library, Brixton, plan of ground floor 101. Tate Central Library, Brixton, plan of first floor . 102. Tate Branch Library, South Lambeth, plan 103. North Lambeth Library, plan . . . . . . 104. West Norwood Library, plan 105. Poplar Public Library, plan . . . . . 106. St. George's, Hanover Square, Public Library, plan of ground 107. Tate Public Library, Streatham, plan 108. West H a m Technical Institute . . . . . . 109. West H a m Technical Institute, plan of library portion 110. Westminster Public Library, plan . i n . Boston Public Library, Mass., elevation . XX LIST O F ILLUSTRATIONS fIG. Page 112. 113. 114. 115. 116. 117. 118. Boston Public Library, Mass., plan of ground floor 245 Boston Public Library, Mass., plan of first floor . 247 Boston Public Library, Mass., interior of the Bates Hall 249 Boston Public Library, Mass., book-waggon 251 Boston Public Library, Mass., plan of second floor 253 Library of Congress, Washington, plan . 259 Mercantile Library Association, New York, plan of lending library . . . . . . . . . . 262 119. Mercantile Library Association, New York, book-stack and delivery counter . . . . . . . . 263 120. Mercantile Library Association, New York, plan of readingroom . . . . 265. 121. Buffalo Public Library, plan of ground floor 270 122. Minneapolis Public Library, plan of ground floor 272 123. Cornell University Library, plan of main floor 276 124. Cornell University Library, plan of third floor .278 125. Milwaukee Library and Museum, plan of ground floor 281 126. Pratt Institute, Brooklyn, plan of ground floor .283 127. Pratt Institute, Brooklyn, plan of first floor 286 128. Pratt Institute, Brooklyn, plan of second floor 287 129. Pratt Institute, Brooklyn, delivery desk and stack-room 289 130. Peabody Institute, Baltimore, plan . 291 . . 131. National Library, Paris, plan of ground floor 294 132. National Library, Paris, plan of reading-room 295 133. T h e State Library, Frankfurt, plan of ground floor 300 134. The State Library, Frankfurt, plan of first floor .301 135. Halle University Library, plan of ground floor . 302 136. Leipzig University Library, plan of ground floor 304 137. Strassburg Imperial Library, plan of groundfloor306 138. Strassburg Imperial Library, plan of first floor .307 139. Strassburg Imperial Library, section . . . . 3 0 140. Wolfenbiittel new library, plan of ground floor .310 141. Valliano Library, Athens, plan of first floor 312 9 LIBRARY ARCHITECTURE AND FITTINGS CHAPTER I EARLY LIBRARIES — SITES — ALCOVES S T O R E S — PLAN, ELEVATION, AND AND BOOK- FACADE — DECORATION—PRECAUTIONS AGAINST FIRE. T H E libraries erected during the couple of centuries following the invention of printing differ considerably from the modern type of library building. Then the readers were few in number, and the student was ensconced in a snug alcove, founded on the traditions of the scriptorium. Suites of rooms were built with the idea that they would be used more as exhibition galleries than as storerooms for books meant for study. Many examples of this type of building are to be seen on the Continent. Amongst them may be mentioned the Biblioteca Laurenziana, at Florence, designed by Michael Angelo about A.D. 1515 ; the most beautiful building of the Libreria Vecchia, at Venice, built by Sansovino in 1571 ; and the present home of the Vatican Library, Rome, built in 1588 by A 2 LIBRARY ARCHITECTURE Sixtus V. from the designs of Domenico Fontana. The latter, indeed, is a typical example; the great hall is a stately vaulted room, 232 feet in length, 48 feet wide, and 29 feet high. It is decorated with frescoes, and contains many magnificent specimens of sculpture, porcelain, and other works of art, but the books are placed in cabinets FIG. I.—The Bodleian Library. and presses, with doors, so that one might walk through the room without knowing the purpose for which it was really erected. In these old libraries the method of shelving generally adopted was that of erecting high bookcases around the walls of each room. The nuisance of having to use long ladders to reach the top SITE AND PLAN 3 shelves would soon be felt, and so galleries were built around them at suitable heights. The oldest example of these early galleries (Fig. i) still in situy and used for the purpose at the present time, is to be found in the Bodleian Library at Oxford, built by Sir Thomas Bodley in 1597, and enlarged some thirty years later. Other instances of this style of architecture may be seen in the library at the Castle of Mannheim, the Court Library at Vienna, and F I G . 2.—The old library at Wolfenbiittel. the Monastic Library at St. Gall. The Radcliffe Library at Oxford, designed by Gibbs in 1740, which is now used as a reading-room for the Bodleian, is notable, also, as one of the earliest instances in England of a circular library lit from the roof. An earlier Continental example, from which Gibbs is said to have copied his design, is that of Duke Anton Ulrich at Wolfenbiittel (Fig. 2), which was built by Korb about 1710. The first architect to plan a library which in LIBRARY ARCHITECTURE 4 any way meets the modern requirements of giving ample shelf accommodation was Leopoldo della Santa, who in 1816 published at Florence a quarto pamphlet, with the title Della costruzione e del rego- F I G . 3 . — S a n t a ' s p l a n for a l i b r a r y . A. B. C D. E. Entrance. Hall. Reading-room. Open courts. Superintendent's office. F. G. H. I. Catalogue room. Choice and rare books. Ordinary books. Offices of librarian and his assistants. lamento di una pubblica universale Biblioteca) con la pianta dimostrativa. It is interesting to recall this early attempt to construct a building entirely from an utilitarian point of view (Fig. 3). He takes for his site a rectangular plot, with light on all four SITE AND PLAN 5 sides. The entrance is placed in the middle of the narrowest side ; and leads to a reading-room in the central part of the building one-third the width of the site, and lit from four open courts and the roof. The portion of the site behind the reading-room is cut up into small rooms for the staff and for the shelving of the rarer books. The remainder of the site on left and right of the reading-room is entirely devoted to two book stores, which extend from the front of the building to its rear, and are planned to shelve the books in double cases, placed at right angles between each window. This design, however, was never carried into effect, although it received the commendation of Vincenzo Follini, librarian of the Magliabecchian Library, and of Molbech, librarian of the Royal Library at Copenhagen. The provision of a suitable site lies at the foundation of a satisfactory library building. A poor building may indeed be built upon the best site, but it is certain that a well-adapted library cannot be expected if the area on which it is to be built is cramped and irregular. In choosing a site, there are three questions which should be asked about it— (i.) Is it suitably placed for the readers who are likely to use it ? (2.) Is there space sufficient, not only for the present needs of the readers and stock of books, but for its future growth and extension ? (3.) Are the surroundings likely in any way to interfere with the comfort of the readers, or the safety of the building and its contents ? 6 LIBRARY ARCHITECTURE In considering the first of these questions, the general trend of the population is a good guide. Most towns and cities have some recognised centre —a main street, municipal buildings, town hall, post office, or railwTay station—and it will be natural to look for a site near one or all of these. Care should be taken, however, to select one which, while as central as possible, shall not be unsuitable because of the noise of heavy and continuous street traffic, or the whistling of locomotives and shunting of trains. In some cases a site may be obtained sufficiently ample to allow the building to be set back, and so minimise what many libraries have found to be a great and irremediable nuisance. Quiet is one of the first requirements of a library, and every effort should be used to obtain it. The second consideration, that of space, not only for present needs of both readers and books, but for future growth, is often but little considered. In many towns expensive buildings, which should last at least a hundred years, have been erected, covering the whole of the ground available, and it has been found in ten years, or even less, that extension is needed, and there is no possibility of shelving more books, or of giving accommodation to the increasing number of readers. Committees new to library work often have no idea of the rapid growth of their libraries. The following table strikingly illustrates the rapid increase both of books and of readers in a few of the representative British free libraries :— SITE AND PLAN 7 Table showing stock of books in Central Library only. At end of the Years 1875. Birmingham . Bolton . Cardiff . Glasgow . Leeds Liverpool Manchester Nottingham 1880. 1S85. 1890. 1895- 57,o8l f Burnt ] \ out in \ { 1879 J 104,286 i32>732 155,633 55>i2i 18,302 62,382 73,023 86,429 82,000 51,366 68,061 83,679 55*080 116,000 37,235 8,310 37,464 60,808 55,000 . 45,466 11,810 33,oi9 52,711 72,406 70,000 27,108 2o,579 33,509 87,i93 84,930 96,689 •95,400 68,535 99,090 108,279 107,000 81,436 Table showing the number of books issued in the Central Library only. For the Years Town. 1875. Birmingham. Bolton . Cardiff. 1880. 1885. 1890. 1895. 365,251 194,102 26,076 4IO,IOO 24.0,708 621,460 318,653 137,204 64i,37i 443,909 I79,78i Leeds . Liverpool Manchester . Nottingham . 275,882 517,393 61,213 143,096 54,171 390,732 Glasgow 614,428 264,421 91,372 468,056 362,299 577,772 203,194 160,562 501,766 650,152 283,232 319,573 f Removed } 1 to new J ( premises J 43M36 619,748 307,785 333,8o7 513,456 504,989 619,259 416,100 397,446 The central libraries at Manchester, opened in 1852, at Leeds, opened in 1872, at Glasgow, opened in 1877, have all outgrown their original buildings, 8 LIBRARY ARCHITECTURE and have had to be removed into others ; and those of Birmingham, opened in 1866, and Liverpool, opened in 1853, have had to be enlarged by the absorption of adjoining properties. In considering the size and shape of a site necessary for a town's library, no hard and fast rule can be laid down. It will be self-evident that a deep site, extending far back, and surrounded by other buildings, with but a narrow street frontage, will only allow of a building being erected upon it one storey in height; while a site of the same shape and area, with its long side fronting the street, will allow the erection of a two-storied building, with ample light to all its rooms. A corner site is, of course, preferable to the same area enclosed, and one bounded by streets or open spaces on all of its sides is better still if it can be obtained. Much will depend upon the accommodation required in the building. A town's library should give the public at least a reference department, a lending department, a reading-room or rooms for newspapers and magazines, and the necessary working rooms for the librarian and his staff. To these may be added separate reading-rooms for boys, girls, and w o m e n ; an inner readingroom for students; lecture hall; museum and art gallery; residences for the librarian and the caretakers ; strongroom for the safe keeping of MSS. and incunabula, or local collections ; and rooms for binding and repairing. In the Birmingham central library, space for the growth of the library proper has been obtained by the transfer of the SITE AND PLAN 9 museum and art gallery, and the patent specifications, & c , to another building, and dedicating the whole of the space thus obtained to reference and lending library purposes only ; but even this relief is almost outgrown. Although these alterations were only made in 1880, more shelf room for books will be wanted at no very distant date. The third consideration, that of the surroundings of the library, is also important. If possible, it should be detached from all other buildings, and so diminish the risk of damage by fire, and annoyance from noise to a minimum, and allow the free access of light and air. In some places these requirements have been happily met by erecting the buildings on plots adjoining open spaces which will never be built over, such as recreation grounds, disused city churchyards, or public parks. The public rooms of a library should not exceed two storeys in height, unless a constant elevator service can be secured. A corner site containing 10,000 square feet will afford accommodation for 150 readers of newspapers and magazines; a lending library of 50,000 volumes ; a reference library of 150,000 volumes, with ioo r e a d e r s ; together with librarian's office, and proper accommodation for the staff. In calculating the probable shelf capacity of a site, the question of book storing or warehousing, as compared with shelving the books where the public can see them, must be considered. The general type of library building which has come down to us from the Middle Ages is that of a large and lofty hall, with shelving IO LIBRARY ARCHITECTURE around it to the height of 10 or 12 feet, and above that a gallery or galleries, with similar tiers of shelves. When more accommodation for books was wanted than the wall-shelving gave, it was provided by the addition of bookcases placed at right angles to the walls, and projecting therefrom some 10 or 12 feet into the room. These formed F I G . 4.—Plan of a library arranged on the alcove system. A. Catalogue counter and attendant's desk. B . Space for tables for readers. alcoves, and generally tables or desks for the readers were placed in them between each bookcase. No one can deny the fine effect of a library arranged upon this plan. Those who have seen the Guildhall Library, London ; the library of Trinity College, Cambridge ; or of the Peabody Institute, at Baltimore, know that the result is a SITE AND PLAN II room which satisfies the eye, and impresses the imagination. But the waste of space in the centre area is enormous, and its shelf capacity is limited. The opposite extreme is a plan which provides simply for book storage or warehousing, and is obtained by arranging the bookcases in a separate room away from the readers. The walls are first F I G . 5.—The same area as in Fig. 4 arranged on the stack system. A. Catalogue counter and attendant's desk. B. Space for tables for readers. C. Separate room for books, with double the shelf room shown in Fig. 4. shelved, generally with shelves deep enough to take the quarto and folio books. Then, separate bookcases, shelved on each side, are placed at a distance of about 3 feet from each other, at right angles to the longest side of the room, with passage ways from the issue counter about 6 feet in width. The accompanying plans fully illustrate the difference 12 LIBRARY ARCHITECTURE of the two systems. Fig. 4 is the plan of a library arranged with alcoves, and Fig. 5 the plan of the same room divided into book store and readingrooms, and arranged upon the stack system. An examination of these two plans will show that in each case there is practically the same area available for readers, while the shelf capacity of Fig. 5 is quite double that of Fig. 4. If the alcove system is used for public libraries, it is necessary to have locked doors to the cases, and the greater distance for the attendants to go to obtain the books inquired for, combined with the delay caused by locking and unlocking the doors, materially affect the service. There is also much discomfort to the readers who go into an alcove to be out of the way, and have their attention distracted by the passing to and fro of the attendants. Supervision of the tables in the alcoves from the catalogue counter is impossible, and opportunities for theft and mutilation of books are provided, without much chance of discovery. The initial cost for shelving in the alcove system is greater than in the other, for it is generally necessary to provide bookcases for the whole room at the inception, while in the second plan they can be added as required, until the room is filled.1 In Fig. 5 no doors are required for the bookcases as a protection from theft, and as they are out of sight, they can be built without ornament, and of the plainest materials consistent with durability and neatness. 1 The question of the number of books that can be shelved in a given space will be fully considered in the chapter on " Library Fittings." SITE AND PLAN J 3 The greatest disadvantages of the alcove system are felt in large libraries, where it is necessary to erect five or six galleries for the books. In cold weather, when artificial heat is used sufficient to warm the lower stratum of air and make it comfortable for readers, a continual current of heated air will rise to the top of the building, and slowly roast the unfortunate books shelved there. If open gas-burners are used for lighting, their condition is worse. The products of combustion ascend, and the leather bindings rapidly deteriorate and rot into powder. Some of this decay, however, proceeds from other causes, for many of the leather bindings in college and other libraries, where gas is not in use, have been noticed to be similarly affected.1 Damage is also caused to books by the dust consequent upon the daily cleaning of the readers' part of the hall. In Fig. 5, where the books are in a separate room, the only dust is that made by the few attendants, and so the wear and tear from this cause is reduced to a minimum. A full consideration of the principles and faults of the two systems lead to the conclusion that for a library which can afford to allow its readers access to the shelves the alcove system is the best, especially where, as in university libraries, the number of readers is limited. But a large public library should have the bulk of its books shelved on the stack system, in book stores 1 A valuable paper upon this subject, by Mr. C. J. Woodward, entitled "Some Experiments as to the Influence of Gas on Bindings," will be found in vol. v. of the Library Chronicle. !4 LIBRARY ARCHITECTURE adjacent to the readers' room ; but this may have a wall case around it for the most popular works, open for use without the formality of filling up a reader's ticket. The elevation or facade of a library building should, as far as possible, be in keeping with the object for which it is erected, although there is always a difficulty in making the outside characteristic of the use to be made of the interior. The fagade of the portion used for the staff and administrative rooms may indeed differ from that of the book stores and reading-rooms, as the best light for the former may be obtained from windows differing in size and shape from those used in the latter. This has been done in the public library at Athens (Fig. 141), where the central block, in which is placed the reading-room and administrative portion, is accentuated, and the two wings, which are used as book stores, form inner blocks set back from the frontage of the centre. In large libraries the plan of placing the public reading-room in the central portion of the building seems, on the whole, the best, although it necessitates grouping the books around it, and so many will be shelved at a greater maximum distance from the delivery desks than would be the case if they were all placed on one side only of the readingroom. The book stores should be in direct communication with the reading-room, and should be so arranged that the attendants will not have to cross over any portion of the building used by the public to obtain a book. SITE AND PLAN 15 The decoration of the interiors of libraries should in all cases be severely simple, and kept subordinate. The book stores, to which the public are denied access, do not require much decoration, and if severe economy is necessary, the brick walls may be left exposed to view, without even covering them with plaster. It should always be remembered that the use and storage of books is the raison d'etre of the building, and that if the public rooms are so ornamented and decorated as to become show-places for sightseers, the readers will be disturbed, and the proper use of the library will suffer. In the new building of the Boston Public Library no expense has been spared to make the large reading-room, with its approaches, one of the finest in the world. The entrance hall and staircases have been decorated by Puvis de Chavannes, the greatest modern master of decorative design. Artists like Abbey, Sargent, and Whistler were commissioned to adorn the delivery and reading-rooms, and a magnificent temple of art is the result; but the rooms are more suitable for a museum or art gallery than for study, the purpose for which they were built. The beauty of the place attracts numbers of visitors daily, who audibly express their admiration or criticism, and careful reading under such conditions is impossible. It is a pity that the mistake should have been made of attempting to so beautify this noble building that it shall be regarded by the average man rather in the light of an art gallery than of a place for literary work and study. i6 LIBRARY ARCHITECTURE In arranging the rooms of a library, attention should be given to the probable use that will be made of them by the public. The most frequented parts, generally, are the rooms devoted to newspapers and periodicals, the room for boys, the lending library, and lastly, the reference department. If the library is on a busy thoroughfare, it should be remembered that the latter department must be located in the quietest part of the building. In a two-storey library the natural position of the rooms would be to place the lending library, newsrooms, and boys' rooms upon the ground floor, and the reference department and its book stores upstairs. The shelf accommodation required for the lending library will not be so great as that for the reference department, nor need such care be taken to give ample room for its future growth. The books in this department wear out quickly, and as many are of ephemeral interest, they do not require replacement. In our largest towns it is doubtful if a lending library of more than 50,000 volumes will ever be required, as, before that number is obtained, the annual withdrawal of worn-out and undesirable works will almost equal the additions. Another consideration upon this point is the provision of branch lending libraries and delivery stations. The experience of our larger towns show that the active sphere of work of a lending library does not extend more than a mile around it, and that branch libraries are necessary for the outlying and suburban districts of each town. It should, indeed, be an axiom that a SITE AND PLAN 17 lending library is wanted for each 80,000 inhabitants, and the experience of towns like Birmingham, Bradford, and Nottingham proves that the suburban residents who become readers and use the branch libraries freely, are those who would but rarely visit the central library. An indirect benefit of the multiplication of branches is, that they promote the personal intercourse of reader and librarian in charge, to an extent which would be impossible if the work was concentrated in one building. In Manchester this principle of taking the books to the readers has been carried even further. There is no central lending library, but fifteen wellequipped branches, each containing from ten to twenty thousand volumes, have been distributed over the city with the happiest results. The position of the librarian's office and the workrooms for the staff will depend greatly upon the size of the library. In some places the librarian seems to be considered as a kind of superior janitor or caretaker, and an attempt is made to so place his office that he can sit and watch the entrance hall and note each person entering the building. This is a wrong conception of a librarian's duties, and has come down to us from the dark ages, when it was thought a librarian's chief work was to preserve his books from the assaults of the would-be readers, instead of acting as a key to unlock the stores of his library. This old feeling is happily changing, and the readers are finding that the more " alive " a librarian is, the more useful to them he can be in assisting and directing their B i8 LIBRARY ARCHITECTURE studies. In small libraries the librarian should be close to the delivery desk of the lending department, for it is there that his advice and opinion will be chiefly in request. In larger libraries, where a greater portion of the librarian's time is of necessity taken up with the administrative duties of his position, it will not be possible for him to come into close personal contact with the readers, but he should be so placed as to be readily available when wanted. In small libraries, where the staff of -attendants is limited in number, an attempt should be made to obtain some supervision of all the public rooms from a given point of vantage, say, the issue desk of the lending department. In some libraries this has been done by erecting one large room, shelving the books round the walls, and placing the newspapers and periodicals on tables and stands in the centre. This is a plan to be avoided if possible, for not only is the noise inseparable from the work of the lending department annoying to the readers, but the vitiated air of the room—if it is used at all largely—plays havoc with the unfortunate attendants, who have to respire it for nine hours or more each day. The lending library should in all cases be in a separate room. Supervision can easily be obtained by good planning and a liberal use of glass screens in the division walls. The plans of the Edward Pease Library, Darlington (Fig. 69), the Tate Public Library, Streatham (Fig. 107), the Westminster Public Library (Fig. n o ) , and the South Lambeth Library (Fig. 102), give SITE AND PLAN !9 examples of how this has been done on four sites of different shapes and areas. Opinions are divided upon the question of supplying free sanitary and lavatory accommodation for eaders. If the library is large, and can afford to engage an attendant, they are most useful adjuncts ; but if they have to be left open without supervision, they will prove a nuisance in more senses than one. The provision of a lavatory for handwashing only is almost necessary for reference libraries, and will repay itself in the better condition in which the books are maintained. A certain amount of dust seems inseparable from the reference department, and it is well to give the scrupulous reader an opportunity to remove it. Safety from fire is a great consideration, more especially in the larger libraries, where special collections have been formed, or unique specimens of typography or art are stored. In such buildings the rooms for the staff and those used for the administrative work of the library should, if possible, be separated from the book stores. This has been done in the Royal Library at Stuttgart, which is planned in the shape of a capital T (Fig. 6). The central block is entirely administrative, and the reading-room is placed at the junction of the cross-piece with the upright. The book stores are situated on either side, right and left of the reading-room. Space for extension will be provided by building a return at each end of the cross-piece parallel with, and as long as, LIBRARY ARCHITECTURE 20 the central block. This plan admits of complete isolation of the books from all other parts of the building, and as they are shelved in two stores, one half of the stock is separated from the other half, and so the contingency of the total destruc- FIG. 6.—Kbnigl. Bibliothek zu Stuttgart. a. b. c. d. e. Book stores. Vestibule. Writing-room. Reading-room. Manuscripts. f. g. h. i. k. Librarian's office. Bookbinder. Assistant-librarian. Catalogue-room. Porter. tion of the library is further diminished. A dread of fire is by no means unnecessary, for history gives us many examples of almost irreparable loss. Without going far back, there may be mentioned the destruction of the Cottonian MSS. at Ashburnham House in 1731 ; and the Central Library at Birmingham in 1879, w ^ n ^ s priceless SITE AND PLAN 21 Shakespeare and Staunton collections ; the Welsh University Library in 1885 ; the library of Congress at Washington in 1851 ; and the University Library at Brussels in 1886. Fires have also recently taken place in the Newcastle-upon-Tyne and Manchester libraries, but fortunately without doing irremediable harm. The National Library at Paris has for many years been in danger of destruction by fire by reason of its situation, as it is enclosed by four narrow streets in a busy commercial locality. Up to a short time ago, indeed, parts of the building were sublet for shops and dwelling-houses. It has been apparent to the authorities for a long time that the library should be removed, and plans were made for a new building, to be placed between the Louvre and the Tuileries. This for some reason fell through, and then an attempt was made to transfer the collection to the Luxembourg. This suggestion also was not carried into effect, and the custodians seem now to have arrived at the conclusion that they must make the best of their present site. Much of the old building, some of which was built by Mazarin, has been pulled down, and new reading-rooms and book stores erected worthy of the collection. In the construction of a new library of any importance an attempt should be made to make it fireproof. Of course it is impossible to make a building which has to be artificially lighted and heated, and containing wood, paper, furniture, and other inflammable material, entirely so, but 22 LIBRARY ARCHITECTURE certain precautions may well be taken. The walls should be of terra-cotta or brick, and of a good thickness. The inner walls should be taken from the basement up to, and through, the roof, so as to divide the building into as many separate portions as possible. The book stores should be built in a series of rooms rather than in one large room, and all rooms should be separated by double iron doors, or, what is even better, thick doors of oak covered on either side with iron plates, with a space the thickness of the wall between them. The iron or steel girders and ties used in construction should in all cases be covered with terra-cotta or fireclay blocks, to keep the direct action of the flames from them. Due provision must also be made for their expansion under the influence of heat, for if this is not done, it is probable that, in case of fire, the outside walls would be pushed outwards, and the whole structure collapse. One of the many different methods of making concrete floors should be adopted for all floors and ceilings. Wood and felt should not be used in the roof, but iron, and some uninflammable non-conductor. In large libraries the heating apparatus, refreshment rooms, mess rooms for the staff, engines and boilers for the production of electric light, & c , should be separate and distinct from the main building, and connected with it only by corridors with iron doors. All wood used in construction should be chemically treated, and if dust-blinds are fitted to the bookcases, they should undergo a similar SITE AND PLAN 23 preparation. A well-considered scheme of fire-drill for the attendants should be in force, and telephonic communication, tested daily, should be laid on to the nearest fire-station. Provision should be made of hydrants upon each floor of the building, and buckets rilled with water always be available. If the latter are placed in entrance halls, or where they may be exposed to severe frost, a handful of salt should be placed in each to keep the water from freezing. The use of automatic fire-sprinklers in the book stores, unless applied solely to the floors, is only mentioned to be condemned, as the water would do almost as much harm to the books as a fire. The Mitchell Library, Glasgow, has adopted a simple method of precaution against damage which might result from sparks from fires in the adjacent buildings. Tubes have been taken up from the watermains to the roof of the building, and are run along the tops of the ridges of the skylights. They are perforated with small holes, and upon turning a tap in the basement a powerful stream of water is forced through in the form of spray, which effectually wets the whole roof, and would keep in check, if not extinguish, the fire of any burning brands, sparks, or cinders which might fall upon it. In fixing such a system care must be taken to so arrange the levels of the pipes that no water can remain in them, but must drain away at or near the tap in the basement. If this is not done the imprisoned water will freeze in the pipes, and stop the passage at the time probably when it is most required. 24 LIBRARY ARCHITECTURE One valuable security against fire may probably be found to be the cases invented by the eminent bookbinder Mr. Zaehnsdorf, for the protection of books of especial value. They have successfully borne the ordeal of an actual conflagration at the burning of Lord Carysfort's library, and have been tested with encouraging results by the present Keeper of Printed Books at the British Museum. On this occasion the only part of the paper charred was that actually in contact with the inside of the case, which would not have happened at all if the books tested had been bound. The expense of such cases is, nevertheless, a serious obstacle to their employment, but in practice it would probably be found that separate cases were unnecessary, and that it might even suffice to line the shelves with the incombustible material. The flooring of the public rooms of libraries should be as noiseless as possible, and of a material that is warm to the feet, and capable of being readily cleaned. The entrance halls and lobbies will be best paved with mosaic or encaustic or glazed tiles. These should be of a light colour, for this part of the building is generally the worst lighted. Stone floors laid in large squares are not recommended, as they are apt to wear irregularly. Marble looks well, but has been condemned by many for its sonorousness. In the reading - rooms and reference library wood is generally used. If it is not intended to cover the floors, the best floor will be one made of wooden blocks laid upon a cement foundation. SITE AND PLAN 25 Pine and deal are most often used for cheapness, but they wear unsatisfactorily, and, if scrubbed much, soon show the grain and become ragged. Oak blocks are used in the Minet Library, and form a close floor almost impervious to damp and dirt. The most suitable covering for a wood floor is cork carpet or corticene : this can be obtained nearly half an inch thick, and it seems to consolidate with heavy traffic. A block floor is unsuitable for covering, as the sharp edges cut the material and cause it to wear. Covered floors should be made in the ordinary manner, and of well-seasoned wood that will not readily warp. Great care should be taken to see that the wood is dry and wellventilated underneath before the cork carpet is laid upon it, for if it is done while the wood is at all green, dry rot will set in, and the floor be destroyed. For the same reason the cleaners should be cautioned against using too much water in cleansing floors of this character. Cocoa-nut matting and carpets are unsuitable coverings for rooms which are much used, and should not be placed in any of the public rooms. CHAPTER II NATURAL AND ARTIFICIAL LIGHTING, HEATING, AND VENTILATION THE question of the lighting of the library, both by day and night, is most important. It is best to err on the safe side, and give too much natural light than too little ; for it is an easy matter to subdue with blinds too great a light, but the initial mistake of a faulty natural lighting can only be remedied by the use of artificial illuminants or costly structural alterations, if indeed the latter are even possible. In designing a library the architect should adopt a style which will admit of high windows with square tops, for a square foot of clear glass two feet from the ceiling will admit more light than ten square feet at the same distance from the floor. This proposition is very elementary, but in how many cases do we see it forgotten, and the comfort of the readers sacrificed for an artistic but unsuitable elevation ? A striking instance of this want of foresight is seen in the Dundee Free Library, designed by Sir Gilbert Scott. Here we have Gothic-pointed windows, suitable indeed to give the "dim, religious light" of a cathedral, but of little use for reading 26 LIGHTING AND VENTILATION 27 the small print of newspapers; and so the building, outwardly artistic and handsome, is internally a failure. Side windows in the news-rooms should be placed as high as possible from the floors, so that the light may travel readily over the newspaper stands and racks. Double windows are advantageous when the library is within earshot of noisy traffic, and also in cold weather, as they diminish the draught caused by the hot air of the room chilling against the cold outside glass, the layer of air between the two casements being a bad conductor of heat. Windows should be in definite proportion to the size of the rooms they have to illuminate. If the library is situated in a street of ordinary width, and is not overshadowed by lofty buildings, there should be a minimum of 8 square feet for each 500 cubic feet of room space. On upper floors a slightly smaller proportion may suffice. In relation to this question the aspect of the library should also be considered; a room facing south will do with less window space than one facing north. Large squares of plate glass are better than the small panes or leaded lights so often used. It may sometimes be desirable to glaze the lower parts of the windows with tinted glass to prevent overlooking. The best light for reading is that which comes from the left side of the reader, so newspaper stands and tables should be placed as far as possible at right angles to the windows. If light can only be obtained from one side of a room, its 28 LIBRARY ARCHITECTURE maximum width should not exceed 30 feet, and only be that if the room is lofty and the windows high up. The colour of the walls is an important factor, as dark colours absorb much of the light, while light colours reflect and diffuse the rays of light which fall upon them. A dado of glazed bricks or tiles around reading-rooms is of value, both from a sanitary point of view as well as that of helping to diffuse the light. So far, wre have considered the lighting of rooms by side lights only. A top light can be obtained in some of the rooms of most buildings, and its use is often advantageous. The readers can be arranged without regard to shadows, as all parts of the room are equally well lighted, and there is no limit to the size and shape of the rooms. The inconveniences of top lights are, the difficulty of keeping them rain-proof, and the draughts which are caused by the heated air ascending, chilling against the cold glass, and falling back again in cold currents. The first defect can be minimised by inserting clear glass windows in the clerestory only, and not in the slope of the lantern. The second can be met by an inner glass ceiling, which also has the advantage of intercepting the direct rays of the sun, and so keeping the room at a low temperature during the summer months. In the Edward Pease Public Library, Darlington, the roof of the reading-room is ceiled in this manner, with lightly-coloured stained glass. Each square is lifted about two inches from its bed by supports at the corners, and so allows free egress for the vitiated LIGHTING AND VENTILATION 29 air, which passes through into the large open space between the ceiling and roof, and from thence into a ventilating shaft. The best artificial lighting of a library is undoubtedly that by electricity; first employed, as is believed, at the Liverpool Free Public Library, and shortly afterwards at the British Museum. Not only does it keep the air pure, and at an even temperature, but it has no products of combustion, like those from gas, to rot the bindings of the books and dirty the decorations of the rooms. The expenses of installation and maintenance have debarred many libraries from adopting it, but in places where,gas is high in price, it seems that there is but little difference in the cost. The experience of the Chelsea Public Library may be useful. The gas bill at the central library in 1891, 1892, and 1893 averaged ^123, 2s. iod. per year at 2s. iod. per 1000 cubic feet. The electric light was then introduced, supplied by a company who charge 5d. a Board of Trade unit. The cost for 1894 was £134, 14s. 2d. ; for 1895, £132, 8s. 9d.; and for 1896, ^149, 4s. 2d. In addition to this charge, an outlay of about £3 yearly has been paid for new lamps. The initial cost of the installation was -£325, and for this 218 lamps were fitted, about half being 16 candle-power, and the rest 8 candlepower. The Newcastle-upon-Tyne Public Library is also lit by electricity. In this case gas is much cheaper than at Chelsea, the price being only is. iod. per 1000 cubic feet. The initial expense of installation 3° LIBRARY ARCHITECTURE was ^475. The number of lamps in use is 187, and the cost for the year 1896 was ^190, as compared with a gas bill for the year 1891 of ^ 9 5 . The difference in cost, however, must not be closely compared, for several rooms are now used by the public which were not in use in 1891. It is estimated that the gas bill for the whole building would now be about ^150. In both these cases it will be seen that the electric current is obtained from a company. Some libraries, such as the British Museum, manufacture it for themselves. The experience of the Mitchell Library, Glasgow, which does this, is that the wages of engineer, and cost and repairs of plant, gas for engines, &c., amount to ^350 yearly for an installation of 274 lights. This experience, and similar results elsewhere, seems to prove that only in very large libraries is it cheapest to produce the light if it can be purchased at anything below 8d. per unit. It may also be mentioned that if it is decided to make your own light, the machinery for doing so should be placed in a separate and detached building away from the library. If the works are placed in the basement, they will be found to be a nuisance from the vibration and noise caused by the working of the engines. The system of lighting best adapted for libraries is that of a plentiful supply of 8 candle-power lamps, or larger, for the reading-tables, each provided with a separate switch, so that it can be turned off when not in use. For large and lofty rooms there should be provided, in addition, two LIGHTING AND VENTILATION 31 or three arc lamps, with an opal shade or tray underneath, to reflect the light on to the ceiling, from which it will be deflected in a diffused form downwards over the whole room. A few gas lights should be introduced, especially on the staircases, for use if, from any cause, the electric light should fail. On gas lighting little need be said. The forms of lighting which convey all the products of combustion away from the room into a ventilating shaft are undoubtedly the best. Sun lights, Wenham lights, the Incandescent system, and Sugg's burners, all have their advocates and opponents. It is much a matter of individual choice. But a word may be said as to the position of the lights, as they are generally placed much too high above the readers for the most effective use of the light. A height of 8 feet 6 inches from the floor will be found to give the best results. The heating and ventilation of libraries is a question upon which much could be written. Taking all things into consideration, heating by hot water on the low-pressure system gives the most satisfactory results. Hot air and steam are used in many of the larger libraries, and are successful when the funds allow a competent engineer to be engaged to superintend the apparatus. The chief defects of heating by these systems are an extreme dryness of the atmosphere, and the charring of particles of dust and dirt by contact with the redhot sides of the heating apparatus. These can be remedied by careful firing, the insertion of trays 32 LIBRARY ARCHITECTURE of water in the conduits, provided with louvres for deflecting the particles of dust floating in the air. A good form of heating small libraries by hot air is that provided by means of " G i l l " stoves placed in the different rooms, but these necessitate the carrying of fuel and ashes to and fro, and so are undesirable for large libraries. The British Museum is heated by hot air obtained through a shaft some sixty feet high. The air is drawn along by a rotary fan and heated over boilers, it then passes through a chamber provided with sprays of water for counteracting dryness. Under the central reading-room is a vast air-chamber, divided into long, narrow compartments, which radiate from the centre to the circumference, and each provided with hot-water pipes. The hot air enters the reading-room from inlets in these chambers, arranged at the end and top of each rowT of readers' desks. The room is lit by side windows and a lantern, the latter being double to protect the readers from draughts caused by the chilling of the hot air against the glass, and the upward current of the vitiated air is helped by means of coils of steam-pipes placed in the dome. The exits are the ordinary " Boyle" ventilators. Much of the success of the Museum heating depends upon the efficiency of the engineer. Without constant and unfailing watchfulness this extensive building would be most difficult to keep at an even temperature. As it is, complaints are not wanting. On one occasion a reader propounded to a stoker a theory of heating, founded upon the LIGHTING AND VENTILATION 33 maintenance of a definite proportion between the warmth of the internal and external air, which demanded a reduction of the temperature to about 45° F. The attendant replied that his theory might be excellent, but he was sure that if he reduced the temperature to that point he would have his readers at boiling point ! In heating by hot water on the high-pressure system, small wrought iron tubes of |-inch bore are carried through the room from the furnace boiler. When the fire is lit the small quantity of water is soon heated, and a very rapid circulation, giving out great heat, is speedily obtained. This system is often adopted by architects, as the pipes are small and neater in appearance than those used in low-pressure systems. Its disadvantages are the danger of bursting, as the pressure will vary from 50 to 500 lbs. on the square inch ; a great liability of obstruction in the pipes through the water freezing during cold weather, when an explosion is sure to take place ; and the over-heating of the air in contact with the pipes nearest the furnace, and the consequent liability to fire, if by accident wood or other inflammable substances are in contact with them. For the low-pressure system of heating by water, pipes of from 2' to 4 inches inside diameter are used. The water leaves the furnace boiler, which is placed at the lowest part of the apparatus, at boiling point, and circulates until it returns to the boiler, where it is heated again. The advantages of the system are that the risk c 34 LIBRARY ARCHITECTURE of fire is reduced to a minimum, for no part of the pipes can have a higher temperature than 212° F . ; and an equable temperature can be readily maintained, as the heat is easily regulated and controlled. The furnaces are economical, as any fuel capable of generating heat sufficient to boil water can be used. In fixing the pipes, a word of caution may be given against laying them in trenches in the floor with surface gratings. Not only is more heating surface necessary, for a great part of the heat is radiated into the brick channels which hold the pipes, but they are most unsanitary. Dirt, dust, and filth fall through the grates and collect around and under the pipes, where it is difficult to be removed, and as soon as the pipes get warm, a constant current of fine dust ascends with the heat and contaminates the air. Hot-water pipes should in all cases be run on brackets around the room, so that the dust can be wiped from them daily with a wet cloth. Radiators, or coils and stacks of pipe, should be fixed near the doors in entrance halls, and adjoining all fresh air inlets, to warm the air entering the building. The boilers and main pipes used to convey the water beneath the floors should be covered with some good non-conductor. The ventilation of libraries is a difficult problem which does not seem to be yet solved. In this country but few libraries have adopted mechanical methods ; nearly all rely upon natural ventilation, and the same inlets are expected to be as satisfactory in July, when the outside air is hotter LIGHTING AND VENTILATION 35 than the inside, as in December, when the inside air is thirty to forty degrees warmer than the outside. It is self-evident that if the ventilation is satisfactory in summer, it cannot be expected to answer in winter. In considering ventilation, the first question should be, How much air is vitiated in each room in a given time for each person occupying it ? A consideration of this point gives us an answer to the converse problem, How much fresh air should be allowed to enter the room per hour ? The opinions of experts differ on these points, but it may be taken as a general rule, that in a room occupied to its maximum capacity, 25 to 30 cubic feet of air should be extracted per minute for each adult. A rough guide is given to us by our sense of smell, for if a room has the slightest perceptible odour, its ventilation is imperfect. The difficulty, of course, is to extract the foul air and introduce fresh without creating draughts. The method of doing so is practically the same in all systems, the use of a shaft with numerous inlets opening into it at the top of the room to withdraw the air, an upward movement in it being caused by the warmth of the vitiated air itself, or by the use of a gas-burner or a stove inserted in it. Corresponding inlets for fresh air are necessary, and must have relation to the outlets. They should be a little larger in area, and well distributed over the room. If but one or two inlets are provided they will cause a current of air to run directly to the outlets, creating a draught, and leaving stagnant air in other parts of the room. 36 LIBRARY ARCHITECTURE The most suitable places for inlets are about seven or eight feet from the floor, and they should open upwards, so that the direction of the incoming air shall be towards the ceiling. The " Tobin " ventilation tubes are constructed on this principle, and seem to be one of the most efficacious of the various natural systems of ventilation in use. The following table, which was compiled by the late Charles Hood, shows the cubic feet of foul air extracted by a ventilating shaft of an uniform area of 1 square foot— " '"'"i Height of Ventilating Shaft in Feet. IO 15 20 25 30 35 40 45 5o Excess of Temperature of Air entering the Vent ilating Shaft above the External Air. 5 Il6 I42 164 184 10 15 20 25 3o 164 200 245 285 235 284 330 368 260 202 410 403 436 465 45° 486 518 284 348 404 450 493 493 518 55i 579 218 232 260 284 306 235 248 260 329 348 367 20I 318 347 376 403 427 45o 3i8 368 53i 570 605 635 As an example of the above, let us suppose a ventilating shaft 30 feet high, and the difference in temperature of the two airs to be 150, then the discharge would be 347 cubic feet per minute ; if the height be 40 feet, and the difference in temperature 200, then the discharge would be 465 cubic feet per minute. A system of mechanical ventilation, combined LIGHTING AND VENTILATION 37 with warming, has been adopted in the Aberdeen Public Library, which the writer has had the opportunity of testing, and which is most satisfactory, both in summer and winter. The following account is condensed from a paper read by the librarian at the sixteenth annual meeting of the Library Association :— The building consists of three main floors, each about 18 feet in height, and 75 by 45 in area. In the basement floor there is a small room, with an opening on one side to the outer air 36 square feet in area. All the air supplied to the building is drawn through this opening by a Blackman fan 5 feet in diameter, propelled by a gas-engine of three horsepower. The fan is placed at the entrance of a large duct, from which branch off other smaller ducts to the several floors. The incoming current of air is first drawn through a screen of manilla hemp, which is kept moistened by an occasional automatic flush of water, and so all dust, soot, and other atmospheric impurities are effectually excluded. In the winter this incoming current of air, after passing through the screen, traverses a large coil of hot-water pipes, and is suitably heated prior to entering the rooms. In the rooms, at a height of six feet from the floor, are oblong openings to admit the air thus screened and warmed. The outlets for vitiated air are grated openings, placed at intervals in the walls close to the floor ; these lead by several small shafts into one large central shaft, with exit at the roof of the building. When the apparatus is at work the fresh air is 38 LIBRARY ARCHITECTURE forced into the rooms, and circulates before it finds its outlet at the floor level. The entire air of the room may be renewed from four to nine times per hour, according to the speed of the engine. This is done without the creation of draughts, a lighted taper held but a foot away from an exit or inlet hardly flickering. It will be understood that all the windows are closed, and that no air can enter the building except by the action of the fan. The currents caused by the opening of the swing doors is outward rather than inward, owing to the compressed state of the internal atmosphere. C H A P T E R III METHODS OF STRUCTION SHELVING THE OF BOOKS, AND BOOKCASES IN WOOD CONAND METAL IT is important to fully consider the different methods of shelving books, in order that the most economical arrangement may be adopted, and a true estimate of the maximum number of volumes which a library will hold be arrived at. Consideration has already been given to the difference between the alcove and the stack systems; this chapter will, therefore, be chiefly concerned with the question of the size, shape, materials, fittings, and construction of the shelves and bookcases. Bookcases may be of two kinds. In one the books are only shelved upon one side, the flat back being generally placed against the wall—these are termed " wall-cases " ; in the second, the cases have shelves on both sides, and are placed in the centre of the rooms away from the walls—these may be termed " stack cases." In considering what height the bookcases should be, we have, firstly, to endeavour to obtain some unit which may be divided by the shelves into spaces which will take the books without wasting 39- 4° LIBRARY ARCHITECTURE room, and secondly, to consider what height is the best for ease of service, and an attempt should be made to combine the two. Nearly all modern libraries have their bookcases low enough to allow the books upon the top shelves to be reached without the aid of a ladder, or, at any rate, by merely using one step 8 or 9 inches in height, the general concensus of opinion being that some height between 7 and 8 feet is the most suitable. 1 Mr. Melvil Dewey in Library Notes recommends 7 feet 8 inches, and my own conclusion is that this or 7 feet 6 inches is the height that, on the whole, is best adapted for ordinary libraries. The greater portion of the books now being published are octavo in size, varying from crowns to royals, or, say, from 7J to 9J inches in height. It seems probable that in the future the proportion of small books will be even greater than it is now. The days of folios, like those published from the fifteenth to the seventeenth centuries, are numbered, except as regards newspapers, and no publisher nowadays dreams of printing books larger than octavo unless they are illustrated, and space has to be obtained for plates, maps, or plans. It is necessary to have a base from 2 to 4 inches high at the bottom of each case to prevent damage to the lowest shelf of books. In some libraries the base has been made higher, and the heating pipes have been taken through it. This is wrong 1 The height adopted at Stuttgart is 7 feet 4 inches ; at Boston, 7 feet 5 inches ; at Stockholm, 7 feet 8 inches ; at the British Museum, 7 feet 10 inches ; at the National Library, Paris, 8 feet 3 inches. SHELVING 41 in principle, for books require a low temperature rather than a high one, and great damage will be done to the bindings if the pipes are placed so near to them. In a case 7 feet 6 inches high it will be seen that with a base of 2 inches, and a top of 1 inch, there is left a space available for books of 87 inches. This will take eight shelves for ordinary octavo books, 10 inches in height, or ten rows of crown octavo books, 7 ! inches in height, allowing f of an inch for the thickness of each shelf. If mixed sizes are wanted, each division will take five shelves for crown octavo, and four shelves for ordinary octavos ; and if a few shelves for larger books are required, they may be obtained by dividing the space into two shelves of 8 inches, five shelves of 10 inches, and one of 14 ; but generally the taller books will be best shelved away from the smaller, as they are broader, and will require deeper shelves. The depth of shelf required for the ordinary octavos, whose height we have been considering, will be from 5J to 7J inches, so a shelf 8 inches in depth will be found to be sufficient. To recapitulate, we may safely say that 75 per cent, of the books in ordinary libraries can be placed upon shelves varying from 8 to 10 inches in height and 8 inches in depth. It is important that all shelves in the library be the same length, so that when it is necessary to remove part of any class to another place, the books may still keep their relative positions to each other. Another advantage is, that any spare shelf will fit any place where it may be wanted, 4 2 LIBRARY ARCHITECTURE and so it will not be necessary to keep a stock of shelves of varying sizes on hand suitable for odd places. Shelves are generally made of i-inch wood, and wrhen planed and ready for use may be taken as from f to £ of an inch in thickness. With wood of this thickness it will be found that a shelf 42 inches in length may be used without it warping or sagging in the centre under the weight of heavy books. On the other hand, shorter shelves are better for keeping the books upright, and so we are led to the conclusion that for practical purposes a length of between 30 and 36 inches is the best. The shelving for the folio and quarto volumes may well be provided in the wall cases. In constructing these it will be best to make the lower part of the case of greater depth, so that a ledge of about 8 inches in width may be formed at a height of, say, 3 feet- from the floor. The total height of the case will, of course, be the same as the stack cases, but the depth of the top portion above the ledge should be 13 inches, and below 21. Cases of these dimensions will give accommodation for the largest books likely to be found in ordinary libraries, and if any of a larger size should be acquired, they must be placed in a specially constructed case. We have spoken so far of one storey only of bookcases, 7 feet 6 inches in height ; but if these are placed on the floor of a lofty room, it will at once be seen that similar rows may be built on the top of them, if a floor of thick hammered glass or perforated iron-work is placed between. SHELVING 43 In this way are built the stack rooms of the larger modern libraries, and the most compact storage of the books, with ease of access to every part, is obtained. In the new building of the public library at Boston there are six of these book storeys ; in the stack rooms, at the library of Congress, Washington, there are n i n e ; but the general rule is to have four. At Boston but little reliance has been placed upon natural light, and it has been thought best to rely upon a plentiful number of electric lamps. In book stores lit only from the roof the light will no more than penetrate one floor, and so light but two storeys ; if the gangways are of exceptional width, as in the British Museum, three storeys may be lit, but any greater number must rely upon side lights. If the latter be large and well arranged on two opposite sides, the book store may be 40 feet in width, but the length of the cases will depend greatly upon the size of the room and its lighting. It has been already recommended that the bottom of the side windows in ordinary rooms should be 8 feet from the floor, so as to allow a continuous run of bookcases round the room, but in book stores with stacks more than two storeys in height this is impossible, and side windows must be provided for each storey. The stack cases will be placed at right angles to the windows, to allow the light to penetrate between them. The distance between each stack will depend upon the distance the windows are apart, the minimum being 2 feet 6 inches; but this width should only be adopted 44 LIBRARY ARCHITECTURE where space is of the greatest value. Passages 3 feet wide will in practice be found quite narrow enough. The central gangway running across the room between the ends of the cases must be wide enough to take the staircase which leads from one book storey to the next, and for a few narrow tables for standing books requiring replacement, &c. The staircase should be in straight flights and not circular, with a width of at least 4 feet. There should be a small lift for books placed near the door, and running from top to bottom of the room, so that books may be easily and readily transferred from one storey to another. If the book stores are very large and some distance from the readers, endless bands running over rollers or cable lines can be fitted along the gangways, to carry the books from the attendants in the book stores to the delivery desk. Examples of book railways of this kind may be seen in the new library of Congress at Washington (Fig. 45), and in the public library, Boston (Fig. 115). The late Dr. Poole of the Chicago Library, while agreeing with this principle of shelving books, strongly objected to the stacks being more than one storey in height. His plan for constructing a large library was described in detail in a "Circular of Information" issued by the United States Bureau of Education in 1881, in which he said— " My first requirement is a lot of ground 200 feet square, surrounded on all sides by streets, or, what is better, by other open space. On the middle of the side most appropriate for the main SHELVING 45 entrance I place the central building, 60 feet front and 75 deep, which will be wholly devoted to the administrative superintendence and work of the library. Here will be the offices of the librarian and heads of departments, the catalogues, the most general works of reference, and here the business of the library will be done. Here will be apartments for the cataloguers, and for unpacking and arranging books. The bindery will occupy the upper storey. The books will be stored not as now in one general repository, but in a series of rooms thrown out as wings from the central building, and extending around the lot. These rooms will be 50 feet wide, 16 feet high, and as long as it is convenient to make them. The width of the wings will be determined by the space that can be wrell lighted by side windows, and that can be spanned by iron girders without pillars. Ten of these rooms are shown on Fig. 7, and carrying the same construction four storeys high, there will be forty of these rooms in the whole building. Each of the rooms will contain the books on some special subject, or, in the early stage of growth, several related subjects. One room will be devoted to the fine arts, and will have the proper cases, tables, and other appliances for shelving and studying the large and expensive illustrated works which belong to such a collection. Another room will have the mechanic arts, while another will contain history. Political economy and social science will be found in another room, and so on through the different classifications of 46 LIBRARY ARCHITECTURE knowledge. These rooms will have no alcoves or galleries. The books will be shelved in wall cases and double cases not higher than a person can reach. High light will be taken on the exterior FIG. 7.—Dr. Poole's plan for a library building. side from windows above the wall cases, and each room will have light from two sides, the reading desks and tables being on the inner side where there are no wall cases, and lit by windows of full length looking into the quadrangle. SHELVING 47 " T h e attendant in charge will have an opportunity to become acquainted with the books in his department, and competent to assist readers in their investigations. There will be no need of a general reading-room other than one in which are kept encyclopaedias, dictionaries, and general works of reference. When it is necessary, books can be loaned from one department to another, as they are now sent to the general reading-room. As a general rule, readers will go to the room which contains the class of books which they wish to study. "As a protection from fire, each room used for the storage of books is cut off from every other room by a brick fire-wall extending through the roof, and every floor will be made thoroughly fireproof. The only access to the rooms will be by a light iron corridor at each storey, seven feet wide, running around on the inside of the quadrangle, as indicated on Fig. 7. If by accident fire should start in any one of these forty rooms, it could not endanger the safety of the other thirty-nine. In the rear of the central part of the building will be an elevator, which will land readers upon the level of any of the corridors ; it will also have stairways, besides its elevator for reaching its several stories." It will be seen that Dr. Poole's plan is practically that of the stack room system, with solid fireproof floors, and a distribution of the readers into separate reading-rooms, instead of concentrating them in one large room. One objection made to 48 LIBRARY ARCHITECTURE the stack system is that it is unsuitable for libraries where the readers are allowed to have access to the shelves, its principle being the warehousing of the books in the most compact manner, and not the provision of facilities for reading them. In the Amherst College Library this difficulty has been met by shortening the alternate stacks to a height at which they can be used as tables. But even this will only give accommodation for a very small number of readers ; and if the general public are to be admitted to the shelves, some modification of Dr. Poole's plan seems likely to be the best. The loss of space is a serious objection to allowing the public access to the shelves at all ; and the multiplication of reading-rooms is objectionable, as necessitating a similar multiplication of catalogues and books of reference. To calculate how many books can be shelved in a bookcase, it is usual to allow 10 volumes to each foot of shelving for ordinary octavos, and 6 for folios and quartos. The average over the whole shelving of an ordinary collection of books will probably be 8 | volumes to the foot. If it is wanted to know how many books a. room will hold if fitted with cases 7 feet 6 inches high, the method of calculation is a little different. Let us suppose that the case is 16 inches deep, and has books on each side; that the width of passageway between it and the next case is the minimum of 32 inches ; and that each shelf is 36 inches in length. The floor space that one division of one side of the case will take is half the width of the SHELVING 49 case (8 inches), plus half the width of passage-way (16 inches), multiplied by the length of the shelf (36 inches), which gives a result of 6 square feet. If the average number of shelves in the division is 9, and there are 8J books to the foot, the capacity of the division is 230 volumes; or an average of 38 books to the square foot of floor area. In this calculation no account has been taken of the stairs, windows, doors, or cross gangway, and only a minimum width of passage-ways has been allowed. If space for these are taken into consideration, a conservative estimate of the shelving capacity of a room will work out at 25 volumes to the square foot. A book store, therefore, 50 feet by 40 in area, with cases 7 feet 6 inches in height, will shelve 50,000 volumes ; and if the room be 35 feet high, and four tiers of bookcases are erected in it, its capacity is increased fourfold, to 200,000 volumes. In the construction of bookcases and shelves wood has been generally used, but of late years iron has been introduced with considerable success. The advantages claimed for wood are that it is cheaper; it looks better ; and, if the corners and edges are rounded, it does less damage to the bindings than any other material. It is contended for iron that it is fireproof; the stacks do not obstruct so much light as the solid wood cases; and that it allows free ventilation to the backs of the books. The latter (ventilation) is an important point, especially in the store rooms of large reference libraries, where long sets of books but little D 5o LIBRARY ARCHITECTURE used are packed closely together, and are seldom removed from the shelves. In hot climates metal has the great advantage of resisting the attacks of insects. Slate is used in the Fitzwilliam Library at Cambridge ; and papiermache shelves might answer for light books, though we have not heard of its having been tried. It is unnecessary to have partitions running from top to bottom of the double cases dividing the shelves on one side from those on the other. The shelves, however, should not be made to go right through the case, but must be separate, so that if necessary the shelves on one side may be placed at different heights to those on the other. All shelves should be movable, in order that the utmost freedom may be obtained for the arrangement and classification of the books. The shelves intended for the reception of rare works, or those valuable for their bindings, should in all cases be padded. In the British Museum all the shelves are covered with cowhide, and twTo square pads of leather are also provided for each shelf, to prevent the end books rubbing against the upright divisions. In some libraries where leather could not be afforded Canton flannel has been used, but this is not recommended, as it is a suitable habitat for moths. Falls should be of some cheaper material than leather, or they will hardly repay their cost; at the same time they must not be dust-traps. Roller blinds, which are fixed inside the top cornice, are in use in many libraries, and keep much of the floating dust away from the books. SHELVING 51 If any of the bookcases are exposed, and have doors, provision must be made for ventilation ; this is best done by inserting wire netting in the panels instead of glass or wood. The method of construction of a bookcase of wood, with fixed shelves, is too well known to need description. There are several appliances in use for allowing the shelves to be easily and readily moved. One of these is that shown in Fig. 8, and is known as " T o n k s ' Fittings." A groove is run at the back and front of each upright, and in this is screwed a strip of metal, perforated with oblong holes f of an inch apart. A small square catch, with a piece projecting, is slipped into a hole, and stands out at right angles to receive the shelf, which rests upon four of these, placed one in each upright strip. This fitting FIG. 8.—Tonks'shelf fitting. allows the shelf to be raised or lowered at distances corresponding to the perforations in the uprights. In fitting, it is important to cut the grooves in the uprights deep enough to embed the whole of the iron strip; if not, it will project and damage the bindings. 52 LIBRARY ARCHITECTURE In some libraries wooden pegs are used, driven into holes bored at regular intervals. These cannot be recommended, for they continually get loose and drop out, as the wood warps or stretches under the influence of heat or cold. Fig. 9 shows the construction of the shelf supports used in the new Record Office, Chancery Lane, London. A hole is drilled in the iron up- F I G . 9.—Shelf fitting, from the new Record Office. F I G . 10.—Library Bureau shelf-pin. right, and a similar hole in the one side of a piece of stout angle iron. The latter is secured to the upright by a hollow bolt inserted from one side, into which is screwed from the other side a smaller solid bolt. The shelf is laid upon the top of the angle iron, and rests there securely. Objection must be taken to this manner of fixing the shelves, as the projecting surfaces both of angle iron and SHELVING 53 bolts are likely to damage the books placed against them. The revolving shelf-pin, shown in Fig. 10, is that supplied by the Library Bureau. It is made of metal, and allows of adjustment to two heights from the same hole, the most usual being that shown in the illustration. The second adjustment is made by turning the pin with the projecting part uppermost. The holes for receiving the pin should be drilled in a groove broad enough to receive the square head, otherwise they may sag under the weight and slip out. The Chivers' adjustable shelf fitting, shown in Fig. I I , consists of a metal strip and brackets. The strip is screwed to the inner side of the upright, and is raised a little from the surface by washers at intervals. The brackets which support the shelves slide up or down this strip as desired, and are held in position by an automatic device. This is one of the latest form of shelf bracket, and, as it gives absolute adjustability, it has considerable advantages over many of the contrivances in use. It has been adopted by the Hampstead Public Library, London Library, and the University Library, Aberdeen. In Fig 12 is given an illustration of the wedge bracket. The construction will be apparent from the drawing. The bracket slides between uprights, and is held in place by two wedges, one of which has a serrated edge. When it is necessary to alter its position a smart tap given to one of the wedges loosens it, and it can then be slipped up or down as desired. The front of the 54 LIBRARY ARCHITECTURE F I G . II.—Chivers' shelf bracket and strip, as viewed from the back. SHELVING FIG. 12.—Chivers' wedge shelf bracket. 55 56 LIBRARY ARCHITECTURE bracket is of metal, and is grooved or recessed to hold the shelf firmly and prevent it slipping. F I G . 13.—Library Bureau steel book-stack. The Library Bureau steel stack, shown in Fig. 13, has uprights of cold rolled steel, about 8 feet SHELVING 57 high. These are grooved to carry brackets, which are held in place by keys, automatic wedges, or other devices. The shelves, which may be of wood or metal, are supported by the brackets at either side. The uprights sink into feet secured to the floor, and are tied together longitudinally at the top with tie-bars, and completed with ornamental finials. The exposed ends can be fitted with handsome pilasters, the capitals comprising a label-holder for class and case numbers, and the connecting bars forming an arch over the entrance to the alcoves. Another form of iron bookcase is the " Lambert," which may be seen in the Worcester Public Library. The shelves rest upon brackets which slide upon an upright, and automatically lock when released. A system of fire-proof library fixtures built up of steel and bronze has lately been introduced by the " Fenton " Metallic Manufacturing Company of Jamestown, New York. The uprights are formed of cold rolled steel plates deep enough to accommodate the shelf required, and are slotted at inch intervals to receive the shelves. The latter are made of steel, and have a bead or roll at the front, the whole being polished and finished with japan, thus giving the metal a smooth surface like porcelain. In Fig. 14 is given a section of the stack room of the University Library at Halle, showing the arrangement of the bookcases and stairs ; and in Fig. 15 is shown in detail, on a larger scale, the 58 LIBRARY ARCHITECTURE construction of the cases themselves. It will be seen that the stack room is lit from both sides by large windows, which give abundance of light, and that the only top-light is that obtained from a lantern over the staircase in the centre. More top-light was not used, as it was thought that damage to the books might arise from rain enter- FiG. 14.—Section through the stack room of the Halle University Library. ing through leaks in the skylight. The windows are 3 metres wide, and are separated from each other by a wall space of i | metres. The cases are placed 1.60 metres apart, and are alternately at right angles to the centre of each window and of each wall space; each storey of the bookcases is 2.30 metres in height. To each upright of the bookcases is affixed a metal handle for holding SHELVING 59 while reaching a book from the top shelf. A step is also provided at the foot of each case ; the situation of these are shown in Fig. 15, and the con- FiG. 15.—Section through two storeys of the stack room at Halle. struction in Fig. 18. One defect, however, may be noted ; the shelves are in one piece from back to front of the bookcase, and cannot be altered 6o LIBRARY ARCHITECTURE on one side without interfering with the other. This is a mistake, as of course it often occurs that the books on one side of a case are taller or shorter than those on the other, and so inconvenience and waste of space will frequently happen. In all double bookcases each shelf should have a separate bracket, rack, or pin arrangement for altering its height, independent of its fellow on the other side. The bookcases at Halle are eight divisions in width, and each division is i metre wide. The staircase in the centre of the book stack takes up 2 metres, the total width of the stack being about 20 metres. The floors are of perforated iron-work, and are arranged to fall opposite the centre of the windows, so that each storey has light from about \\ square metres of window. In Fig. 16 is given a section of half of the book stack in the University Library at Greifswald. It will be seen that two storeys of the stack are below the floor level of the reading-room, and four above. Light is obtained from a skylight in the roof and from large side windows, each of them being planned to light two storeys of the stack, the stone-work of the outer walls being placed opposite the floors. The cases vary a little in height, the five top storeys being 2J metres, and the bottom one i\. There is also a basement, 2 metres in depth, underneath the book store, to provide against the possibility of any damp arising from the ground and damaging the books. The cases are divided into five divisions, each a metre SHELVING 6l in breadth, and the stairs giving access to the different storeys are placed in the centre of the store. FIG. 16.—Section through the stack room of the University Library, Greifswald. In Fig. 17 is shown the details of the construction 62 LIBRARY ARCHITECTURE SHELVING 63 of a bookcase and gallery and lift from the University Library at Gottingen. It will be noticed that there is no central division to the cases, and that each shelf has a thin strip of wood at its back to prevent the books being pushed through. This is a doubtful advantage, and may sometimes prevent the shelving of an oblong work, which would otherwise have stood upon the shelf and projected a little into the shelf-room of the adjoining division. A space is left between each case and the floor of the gallery for ventilation, and an iron rod is fixed, at a suitable height, at right angles to the floor, to prevent unwary feet from going through. In the Bibliotheque Nationale at Paris a space of 6 inches is left Trlnsi*ng» for the same purpose, but it is covered with galvanised iron netting. In the University Library at Halle a similar form of construction is used, but here the rod is encased FlG l8_Step a n d iron floor in a Strip O iron, which is f in the University Library, screwed to the uprights, and forms a narrow step at right angles to the case. This allows an ample space for ventilation between the case and the flooring, with no liability to accident. Fig. 18 gives the method of fastening, details of one of the steps, and part of the perforated floor from the stack room at Halle. 64 LIBRARY ARCHITECTURE The construction of the iron floors of the book stacks in the new University Library at Amsterdam is shown in Fig. 19. The drawing is almost selfexplanatory. It will be seen that great strength is obtained from the liberal use of rolled anglework, and that the floor proper is made of squares of cast iron laid upon the angle iron framework. F I G . 19.—Construction of the iron floor of the book stores in the University Library, Amsterdam. The stack rooms of the British Museum surround the central reading-room on all sides. They are divided into three storeys, each being 8 feet in height, and the bookcases are a similar number of feet apart. The floors separating the storeys are of perforated iron gratings, held upon iron girders half an inch in width and 4 inches in depth. In thirty years from the building of the reading-room the stack rooms had become SHELVING 65 congested, and further shelf-room was a crying necessity. The aisles were deemed too narrow for the erection of central presses, and the great cost of extending the building was almost prohibitive, to say nothing of the vast inconvenience of placing the books far from the reading-room. The difficulty was solved in 1886 in an unexpected manner by the introduction of a series of sliding cases or movable presses, adapted by Mr. Jenner, assistant in the printed book department, from a system of supplementary bookcases hinged upon the presses in need of enlargement, the value of which had been discerned by Mr. Garnett, then assistant keeper of printed books, when he casually saw it in use in the Bethnal Green Free Library. It subsequently appeared that a somewhat similar plan had been introduced into the Bradford Free Library by the ingenious librarian, Mr. Virgo, but this was entirely unknown both at the Museum and at Bethnal Green. A narrow iron ledge was bolted to a pair of the parallel iron girders which run at right angles across the top of the cases. In each groove thus formed two wheels run, from which are hung, at a distance of a few inches from the floor, a lightlyconstructed case of iron-work, with shelves on both of its sides, as shown in Fig. 20. The whole weight of this " hanging press/' as it may be termed, rests upon the wheels above. When not in use they are pushed up close to the fixed bookcases, and form a projection of about 16 inches from its surface, thus not materially interfering with the light. E 66 LIBRARY ARCHITECTURE When books from the inner side are required, the case is pulled forward on its overhead wheels for F I G . 20.—Sliding press, from the British Museum. a couple of feet, the book obtained, and the case pushed back to its normal position. The weight SHELVING 67 of a case filled with books averages about 9 cwt., but they are so delicately poised as tu be movable with but little exertion. In th_ lower part of the library the book capacity is trebled without inconvenience, for if one of the new cases is hung on each side of the ordinary 8 feet aisle, a width of 5 feet clear is still left in the centre for passage-way and light. A minor advantage of this system is its cheapness, for the new cases need only be supplied as required. They also meet the wants of more shelf room for any particular class of literature, which, through unexpectedly large additions, may suddenly need more room for its accommodation. Thus enormous space for the extension of the library has been obtained without taking in a single additional foot of ground. The proper shelving of folio volumes is a difficulty often experienced. If they are placed on shelves of the ordinary width, and the shelf is not quite full, the volumes lean against each other, and speedily buckle the bindings, and allow dust to enter. The beau ideal of folio shelving is undoubtedly to lay each volume flat upon a separate shelf, but few libraries can afford the room necessary to so shelve a large collection of books. Fig. 21 shows a device used in the University Library at Strassburg. A fixed projecting ledge is made in a bookcase at a height of about 3 feet 6 inches from the ground, with a depth of about 24 inches, thus forming between each upright an open bin. A thin fixed shelf is fixed inside at a distance of, say, 6 inches from the top, and thin upright divisions are 68 LIBRARY ARCHITECTURE placed under it at distances of about 8 inches apart. This allows two or three folios to stand between F I G . 2i.—Shelving for folios, from the University Library, Strassburg. each division, and two to lie on the top shelf. In Fig. 22 is shown a device used at the British Museum for holding upright the heavy volumes of newspapers. They are small V's of sheet iron, which are screwed to the under side of the top shelf ; but with these great care has to be F I G . 22.—Folio supports, from the taken in replacing the British Museum. volumes, or they are liable to be damaged. Fig. 23 is an illustration of a skeleton bookcase used in the British Museum for the large folio SHELVING 69 cases of maps, plans, &c. It will be seen that they slide on rollers, and so are easily withdrawn and replaced. In the sliding shelf used for the same purpose in the Bibliotheque Nationale, Paris, the edge of the shelf is grooved, and slides along a strip of metal fixed to the uprights of the bookcases. The back of the shelf has a slight projection at right angles, which acts as a stop, and prevents the book being pushed past the edge of the shelf. YIG. 23.—Portfolio case for maps, from the British Museum. At the Liverpool Public Library the most valuable and handsomely-bound volumes are kept in bookcases with glass doors. The large folios lie flat on iron rollers covered with soft cloth, three of them forming a shelf. The rollers are removable, and can be adjusted to any height required. They have a central pin at each end on which they revolve, which fits into grooves made in strips of metal. Three of these are sunk into each side of the uprights of the bookcases, back and front. In libraries where the readers are allowed access 7o LIBRARY ARCHITECTURE to the shelves, it is necessary to have shelf guides or labels to indicate the contents of the cases and divisions. These are best made of tin or brass, sufficiently long to slide on and fit tightly to the shelves. The front portion, which alone is seen when the shelf is full of books, has a turned-over edge, into which printed cards containing the classification can be slipped. These are readily removable, and by their use the books can be closely classified upon the shelves. A handy contrivance is shown in Fig. 24, which is used in the Bibliotheque Nationale, Paris. It is a movable table-shelf, which can be fitted to any bookcase where required, FIG. 24.—-Table-shelf, from the and taken away again. National Library, Paris. In front of each case, at a height of about 3 feet 6 inches, is fixed a length of gaspipe, a similar length being also fixed about 6 inches from the ground and 4 inches from the case. An iron stay at each end of the table-shelf is provided with hooks, which fit on the bottom rod and over the top one, so forming a comparatively firm support. It is rather costly, as each bookcase must be permanently fitted with the two rows of gaspipe, and the bottom row, from its SHELVING 7* position, is liable to be bent and damaged by being trodden upon. A better adaptation of the principle would be to screw on each upright of all the bookcases, at a suitable height, a metal ferrule, and a similar one at the base of the upright. The top of the iron stays nearest the table-shelf should be bent at right angles to drop into the ferrules, and the bottom of the stays would similarly slide into the ferrules fixed to the uprights. If the table-shelf is not intended to support a great weight, a cheaper and better plan would be to screw beneath it a bracket of iron or of wood sufficiently deep to hold it at right angles to the bookcase, and merely hang it on to the metal ferrule by a straight hook. The convenience for many purposes of such a movable miniature table will be apparent to any one who has had to work in the narrow gangways of a book store. In some towns branch lending libraries are open for a few hours only, generally in schoolrooms, on certain nights of the week. The system of folding bookcases designed by Mr. Charles Virgo for the Bradford central library seems well adapted for use in such cases. It is, of course, necessary to have the books under lock and key during the daytime, and this is generally done by providing an ordinary door to the bookcases. In Mr. Virgo's plan the inside of the door is itself shelved for books, and when shut is closed against the fixed portion of the bookcase, thus keeping the books secure from prying fingers and damage from dirt and dust. The bottom of each shelved door is 72 LIBRARY ARCHITECTURE provided wTith a castor, which runs along brass or iron quadrants screwed into the floor. A bolt is also provided which enters a socket in the floor, and holds the swinging-door securely open at right angles to the bookcase. The doors work right and left, and when open are back to back, forming miniature alcoves some 30 inches deep and 5 feet wide. It will be apparent that a great economy of space is thus obtained. C H A P T E R IV INDICATORS, CARD-CATALOGUES, AND BULLETIN-BOARDS T H E use of indicators in public libraries is of comparatively modern growth. One of the earliest forms was that invented by Mr. F. Thornton Barrett, and used in the lending department of the Birmingham central library. It consisted of a wooden screen, on which printed numbers were pasted in horizontal columns of one hundred each. Opposite each number a small hole was drilled, and a plentiful supply of wire nails formed indicating material. The use of the contrivance was to save the time of the assistants, who before its adoption had to take the borrowers' lists to the shelves and look for the books required. The horizontal numbers on the indicator corresponded with the numbers of the books of fiction, and the lists were hunted through by their aid. When the assistant found a book number without a nail in its hole, he knew the book was on the shelf, obtained it, put a nail against the number to indicate it was out, and issued it to the reader. On the return of the books the operation was reversed, the numbers of the books to be replaced were called over, and 73 74 LIBRARY ARCHITECTURE the nails taken out of the corresponding holes. From this primitive contrivance, which was behind the counter and used only by the assistants, all the various forms of indicators, used either by the public or by the attendants only, have sprung. Indicators may be divided into two kinds, namely, those which only show if the books are in or out, and those which combine with this a system of book-keeping and issue recording. One of the earliest of the latter kind is that invented by Mr. John Elliot, of the Wolverhampton Library (Fig. 25). It consists of a wooden frame, with a series of uprights at a distance of about 2 inches from each other. These are connected by shelves of tin, placed about f of an inch apart. Numbers corresponding to the books are pasted to the uprights, one being placed opposite to each tin shelf. The method of work is simple. When a person joins the library he is given a reader's ticket, formed of thick millboard, folded like a book, with two or more pages of plain paper in it. This ticket is retained by the borrower when he has not got a book, and is kept by the librarian when a book is issued. If book No. 608 is wanted, for instance, the borrower looks for the number on the indicator, and if the shelf on the right of the number is empty, he knows that it is in, and asks for it at the issue desk. The attendant fetches the book from the shelf, stamps the date and the book number on the borrower's ticket, and then places it on the tin shelf in the indicator corresponding to the number. It remains there until INDICATORS 75 the book is returned, and during that time shows by its presence to every one who looks at it, that 2FT WIDE. SPACE FOR 1250 TICKETSF I G . 25.—Elliot's library indicator. the book is out, and therefore cannot be obtained. The ends of the readers' tickets are of different 76 LIBRARY ARCHITECTURE colours, and overdues are roughly indicated by them. The readers' tickets for books issued during any given period, say, a fortnight, have, for example, a red end to the front, and those issued during the next fortnight a black end. On the last day of the second fortnight a list is made of the books showing the red end, which will be all overdue, and in a fortnight's time a similar process is gone through for the black-edged tickets. It will be noted in this description that the whole of the process of issue must be finished for each book as it is issued. The entries on the reader's ticket must be made at the moment of issue, and the ticket placed in the indicator to show to other readers that the book is not available. At busy times, in libraries where there is but a small staff, this causes some delay, and in the rush and hurry it may happen that a ticket is occasionally placed on the wrong tin shelf of the indicator, an error which causes much annoyance both to the reader who returns the book, and whose ticket cannot be found, and to other readers who may ask for the book which is out, but which by the displacement of the ticket is shown to be in. The "Cotgreave" Indicator (Fig. 26) was invented some twenty years ago by Mr. A. Cotgreave, now of the West Ham libraries, and is that in use in the majority of the British free libraries. It consists of a metal frame with narrow wood uprights 1^ inches apart, tin shelves connecting them at a distance of f of an inch from each other. 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