A few words may be added in regard to the eclectic, the commercial and the inventorial divisions or classes. Of these three, the first is regarded as peculiarly the province of the educator, since it strives to suppress the bad and to advance the good; and essential require ments for the proper practice thereof are, of course, impartiality and sound judgment. The second is referred to as a phase of salesman ship, or as advertising ability applied to the sale of books. The third — inventorial bibli ography—is requisitioned wherever a valuable collection of books is deposited, and exemplifies the application of accounting methods to books considered as personal property.
We shall now consider in turn the leading characteristics of Subject and Class Bibli ographies, of National Bibliographies , of Bibli ographical Encyclopedias, of Handbooks of Literary Curiosities, and of Bibliographies of Bibliographies; and for the reader's convenience a number of titles of representative works will be included.
A large place in bibliographical literature is held by the bibliographies of special subjects, of literary forms and of classes of books; and it has been well said that such bibliographies are, to the literatures of their special fields, what an index is to a book— if the index chosen for comparison be decidedly ample. They show the extent and character of their respective literatures; they assemble and make readily accessible the scattered fragments of book knowledge. But obviously the resemblance to an index ceases whenever they become markedly selective and designed to serve a didactic purpose. Guides to the best books in some chosen field, outlines of courses of study and library bulletins of various kinds are given as representatives of the bulk of didactic work among subject and class bibliographies. °Of these, manuals and textbooks of literature are especially adapted to the narrative form. Other varieties usually take the catalogue form.° An example of the latter may be studied in the 'Catalogue of the A. L. A. Library' (Washing ton 1905) ; and the wide range of the subjects of other bibliographical works may be at least suggested by the following list: Acland, A. H. D. (Guide to the Choice of Books' (Lon don 1891); Baker, E. A., 'Descriptive Guide to the Best Fiction' (London, 1903) ; Banner, J. C. 'Bibliography of Clays and the Ceramic Arts' ; Borchard,• E. M., 'The Bib liographY of International Law and of Continental Law' ; Bowker, R. R., and Iles, G.
'Reader's Guide in Economic and Political Science' (New York 1891) ; Brockett, P., (Bibli ography. of Aeronautics' ; Gregory, J., 'Cata logue of Early Book on Music' ; Iles, G., ed., (Annotated Bibliography of Fine Art: Paint ings, Sculpture, Architecture, Arts of Decora tion and Illustration, by Russell Sturgis, and Music by H. E. Krehbiel' (Boston 1897) ; Johnston, R. H., 'Railway Economics: A Col lective Catalogue of Books in Fourteen Ameri can Libraries' ; Lamed, J. N., ed., (The Literature of American History: A Biblio graphical Guide' (Boston 1902) ; Leypoldt, A. H., and Iles, G., (List of Books for Girls and Women and Their Clubs' (Boston 1895) ; Nield, J., (Guide to the Best Historical Novels and Tales' (London 1904); Monroe, P., (Bibli ographies of Education' (in (Cyclopedia of Education,' New York 1914); •Perkins, F. B., and Jones, L. E., 'The Best Reading' (four series, Boston 1872, 1875, 1886, 1895) ; Sargent, J. F., 'Reading for the Young: A Classified and Annotated Catalog' (Boston 1890 and sup plement 1896).
National bibliographies are very numerous, but commonly either incomplete or out of date. Among those mentioned by Mr. Feipel are Lowndes' (Bibliographer's Manual of English Literature' (originally published in 1834, but now best known in the revised edition, Lon don 1857-64) ; the (Bibliotheca Britannica,' complied by Robert Watt and published at Edinburgh in 1824; Sabin's 'Dictionary of Books Relating to America' (in 20 vols., New York 1867-92), to which we have already re ferred; and Roorbach's (Bibliotheca Ameri cana' (New York 1849-61). Continental na tions of Europe have produced, among many other works of this order, the following: Brunn, C. V., (Bibliotheca Danica' (3 vols., Copenhagen 1872-96) ; Haeghen, F. Van der, Belgica' (Ghent 1879-98) ; Hein sins, W., 'Ailgemeines Biicher-Lexicon' (19 vols., Leipzig 1812-94) ; Hidalgo, D., (Diccio nario general de bibliografia (7 vols.. Madrid 1862-81) ; Linnstrom, H., Boklexikon' (2 vols., Stockholm 1867-84) ; Pat tersen, H., (Norsk Boglexikon' (Christiania 1899, in progress) ; Querard, J. M., (La France litteraire' (12 'vols., Paris 1827-64) ; Silva, J. F. da, 'Diccionario bibliografico portuguez' (16 vols., 1858-93) ; Thieme, H. P., 'Guide Bibli ographique de la Litterature Franeaise de 1800 a 1906' (Paris 1907).