closely this question is examined, the more certain does it appear that in Book Classification systems of the future the literatures of Science and Technology will be amalgamated and shown in their true genetic order. Of the value of this arrangement our readers may form their own opinion by a perusal of the following brief section of a classification illustrating the sequence of Groups co-ordinated on the above principle. It comprises the sciences of Geology and Chemistry, together with the applied literature lying between the two. While there is little novelty in the details of the scheme, it illustrates the continuity and value of the genetic principle of co-ordination, contrasting sharply with the frequent "faulting" which characterizes existing systems. A further feature in the present scheme is the introduction of certain generalizations possessing a strong literary warrant not always to be found in the older systems. For instance, the heading Mineral Industries is a collective term for the combined literature of Economic Geology, Mining Engineering, and Metallurgy-a class represented by a vast literature of Transactions, Journals, State Reports, in addition to the ordinary textbook literature. This literature cannot be registered simply under any heading provided in the Decimal system, which places the Geological Sciences under 548-53, Mining Engineering under 622, and Metallurgy under 669, thus requiring a triple allotment of each work for its efficient registration. With this preface we may leave the following scheme to speak for itself. It is of course an open chain system, which can readily be continued at either end. Thus Bio-chemistry might be followed by Biology, Microscopy and the Fermentation Industries, while at the other end Physical Geography might be preceded by Meteorology and Climatology—. Physical Geography. Geology: Dynamic. Systematic. Structural. Crystallography. Mineralogy. Petrology. Economic Geology, Systematic (i.e. Ore Deposits: Prospect ing, etc.). Mineral Industries: Textbooks. Mine Engineering and Management (including Coal Mining). Coal Fields, Distribution; Coal Trade. Iron Ores, Distributions; Iron and Steel Trade. Iron and Steel Metallurgy. Foundry Work. Alloys; Metallography. Metallurgy, Descriptive non-ferrous (single metals by groups). Metallurgy, Systematic. Furnaces and Fuel Combustion. Gas Furnaces and Gas Producers. Fuel. Peat Industry. Destructive Distillation. Lighting, Artificial. Mineral Oils, Bitumen, Natural Gas. Gas Manufacture, Distribution and Supply. Acetylene and Carbide Industry. Oils and Fats. Paints, Pigments, and Varnishes. Waxes; Lubricants. Essential Oils; Perfumery and Cosmetics. Soaps, Candles, and Stearine. Gums and Resins. Plastic Compositions and Imitation Substances. India-rubber, Gutta-percha, etc. Cellulose, Paper-making. Leather Manufacture. Chemical Trades. Chemical Technology-Alkali Industry. Practical Chemistry. Chemical Analysis. Chemistry, general and formal. History and Alchemy. Inorganic Chemistry. Metalloids. Metals. Radio-activity. Physical Chemistry. Thermo-chemistry. Solution. Electro-chemistry, pure and applied. Colloidal Chemistry. Photo-chemistry. Organic Chemistry. Bio-chemistry. PROFESSIONAL PERIODICAL LITERATURE. Library World (January). British, 46. Some notes from the professional periodical literature of 1911. 5 PP. 47. FUNNELL (Miss H. A.).—A sketch of the history of the classified catalogue in the British Isles. 4 pp. 48. SAYERS (W. C. B.) and STEWART (J. D.).—The card catalogue. 7 PP. NORTH (M. G., Editor).—Library humour. 5 pp. 46. Begins with the seemingly inevitable reference to Lord Rosebery on the "Cemetery of Books," glances at the development made in the work among the children, and draws attention to the eloquent plea of Dr. Wendel for the immigrant. Bibliography, classification, book selection, the abuse of statistics, metal-leaved books, plans and views of libraries, etc., are among the subjects of contribution to professional periodical literature noted. 47. Briefly traces the evolution of the classified catalogue from the publication of the "Catalogue of the Library of Writers to His Majesty's Signet" in 1805, to Sonnenschein's "Best Books and "Reader's Guide" of 1887 and 1895. Considers the year 1857 as important, inasmuch as it saw the publication of Vincent's "Classified Catalogue of the Royal Institution. 48. Contains illustrations of a nine-tray cabinet, sideless tray, back strut, card punchings, and automatic tray stop. A very informing contribution, if only it had been new. Library World (February). 49. Some urgent reforms: The British Museum Library. 6 pp. 50. KIRBY (S.).—Ought public libraries to advertise? 3 pp. 51. SAYERS (W. C. B.) and STEWART (J. D.).—The card catalogue. 4 PP. 52. COUTTS (H. T.).-Overdue books and the treatment of de faulters. 6 pp. 53. SHARP (H. A.).—Library administration: a plea for uniformity. 3 pp. 49. There is undoubtedly a case to be made out for reform, and perhaps greater elasticity in the application of regulations is desirable. Nevertheless, the violence of the language used in the present instance can only retard the ostensible object of the article. 50. Advocates a levy for advertisement upon all libraries, the product to be expended by a central publicity department. Of the details of the machinery of the levy, and of the establishment of the central publicity department, we are left in ignorance. 51. Advocates the printed catalogue, and gives as illustration a facsimile of a Library of Congress main entry card. 52. A practical article in which are discussed such questions as time allowed for reading, fines for detention, methods of detecting overdues, treatment of defaulters, final proceedings. Specimen forms are also included. 53. We fear the writer's recommendations are hardly yet within the sphere of practical library economics; but much can be said for and against his proposals. The Librarian (December, 1911). 54. THORNE (W. B.).—The Library Assistants' Association. 4 pp. BRISCOE (J. P.).-William Crowther of Derby (portrait). 2 PP. 55. REED (M.).-Women's work in libraries. 56. COOPER (T. E.).-Library architecture. 3 PP. 2 pp. 54. Continues the history of the junior body, and pays a passing deserved tribute to the generosity of Mr. J. Y. W. MacAlister, and the late Mr. Alfred Cotgreave. Mr. Sayers is fully entitled to the mention he receives for his enthusiastic and practical interest in the Association's affairs, and a similar recognition of the incessant and intelligent labours of Mr. Hugh Smith, for many years the Hon. Editor of the Library Assistant," would not have been out of place. 66 55. Mainly consists of a letter from Miss Ahern, editor of "Public Libraries," gently reproving Miss Reed for the crime of femininity in describing the visit of the American Lady Librarians to Exeter. 56. Contains ground plans of the recently opened, or reopened Mitchell Library, and Blackpool Public Library. The Librarian (March, 1912). 57. STUBBS (A. J.).-Fire. 4 pp. 58. Cooper (T. E.).—Library architecture. 2 PP. 2 PP. 57. Discusses such fire-fighting appliances as automatic sprinklers, water buckets, sand buckets, asbestos cloth, powder extinguishers, liquid extinguishers and hand-fire engines. 58. Devoted to the newsroom and the desiderata of reading space, light, shape and accessibility. 59. A slight account of library work by black people for black people. Bibliographical Society's News-sheet (February). 66 60. Annual Meeting. 3 Pp. 60. To the general library public, the chief interest centres in the summary of Mr. H. B. Wheatley's paper, read as Presidential Address, on Seventy Years of Cataloguing". The period of seventy years is chosen because "rules formulated for the compilation of the great general catalogue of the British Museum Library under the direction of Sir Anthony Panizzi were published in 1841 ". Claims that great advance has been made in catalogue compilation, as also in the number of those who can appreciate a good catalogue. Museums Journal (March). 61. CLUBB (J. A.).—Purpose and arrangement of an index museum. 5 pp. HARTERT (E.).—Alterations in the Rothschild Museum at Tring. 7 pp. (illustrated). 61. Perhaps the following sentence culled from this paper will cause librarians furiously to think, if not to talk: "Huxley's consultative library of objects has become of equal, if not of greater importance than the library of books". It is the prelude to an interesting account |