serve a student who wishes to inform himself about the historical development of encyclopedias. In other words, Mlle. Malclès has deliberately and successfully satisfied the needs of French scholars. Mlle. Malclès's admirably organized and very rich list of currently useful bibliographies is, as Joris Vorstius says in his review, indispensable to every librarian. Particularly interesting are the introductory remarks in each chapter. These describe the general nature of the works listed and offer comparisons and critical comment on the value and purpose of the different works. This excellent orientation supplements the brief descriptive remarks attached to the titles. As I have already implied, _Les Sources du travail bibliographique_ has been written for French reference librarians. For this reason Mlle. Malclès is often content to cite secondary authorities for bibliographies not written in French or concerned with subjects of minor interest to French students. This admirable book stands at the peak of selective bibliographies of bibliographies and is therefore a companion to Besterman's comprehensive work. Robert L. Collison, _Bibliographies Subject and National. A Guide to their contents, arrangement and use_ (London, 1951) is a pleasant little book containing the information promised in its title. It is a rare example of a bibliography written in a descriptive style that relieves the tedium of a list. The author has intended to offer no more than a brief handlist of currently useful works with some interpretative comments. He has succeeded well in his purpose.[208]