The task of accurately distributing the titles in a catalogue of subjects would be much simplified, if the books were all properly named. But it is an unhappy failing of many writers to give fanciful or far-fetched titles to their books, so that, instead of a descriptive name, they have names that describe nothing. This adds indefinitely to the labor of the cataloguer, who must spend time to analyse to some extent the contents of the book, before he can classify it. This must be done to avoid what may be gross errors in the catalogue. Familiar examples are Ruskin's Notes on Sheep-folds (an ecclesiastical criticism) classified under Agriculture; and Edgeworth's Irish Bulls under Domestic animals. The work of alphabeting a large number of title-cards is much simplified and abbreviated by observing certain obvious rules in the distribution. (1) Gather in the same pile all the cards in the first letter of the alphabet, A, followed in successive parallel rows by all the B's, and so on, to the letter Z. (2) Next, pursue the same course with all the titles, arranging under the second letter of the alphabet, Aa, Ab, Ac, etc., and so with all the cards under B. C. &c. for all the letters. (3) If there still remain a great many titles to distribute into a closer alphabetic sequence, the third operation will consist in arranging under the third letter of the alphabet, _e. g._, Abb, Abc, Abd, etc. The same method is pursued throughout the entire alphabet, until all the title-cards are arranged in strict order. Too much care cannot be taken to distinguish between books written by different authors, but bearing the same name. Many catalogues are full of errors in this respect, attributing, for example, works written by Jonathan Edwards, the younger, (1745-1801) to Jonathan Edwards the elder, (1703-58); or cataloguing under Henry James, Jr., the works of his father, Henry James. The abundant means of identification which exist should cause such errors to be avoided; and when the true authorship is fixed, every author's chronology should appear next after his name on every card-title: _e. g._ James (Henry, 1811-82) Moralism and Christianity, New York, 1850. James (Henry, 1843- ) Daisy Miller, N. Y. 1879.