catalogue is designed, at any rate, to serve their ends ; (2) that most persons of title change their titular appellation at least once in the course of their lives, and may acquire celebrity under each, so that if the catalogue is to keep pace with them, frequent reprinting will be necessary unless the family name (the permanent factor) be selected as the heading.
The treatment of Pseudonymous works, again, is open to objection, since the reader finds under an author's name not a complete list of his works, but only of those written under his name, or initials, or anonymously, those written under pseudonyms being provided for by general cross-references to such pseudonyms. The saving of space is the only possible justification of this treatment, and the inadequacy of this plea is virtually admitted in recent practice — e.g. in the case of the heading Thackeray, W. M. — special cross-references being made under the author's name for each work of his that appears pseudonymously. The practice of changing the headings of pseudonymous books to the author's real names as soon as these are known would be impracticable for any but a card-catalogue, on account of the reprinting that would be involved.
CATALOGUE OF THE BIBLIOTHEQUE NATIONALE
Up to the present year the British Museum was the only library of the first rank that had printed its general catalogue, either by author or subject. In
