English readers need no reminder of the usefulness of Messrs. Lewis's library; but if they did, this catalogue would provide a most effective one. It falls into two halves: an authors' catalogue and a subject-index. The latter shows that psycho-analysts are especially well served by the library. For it covers not only the many departments of psychology and psychological medicine, but also such neighbouring provinces as anthropology and ethnology, education and philosophy. Thus the catalogue in itself will be found valuable as a reference-book even by those who do not use the library. The present edition is revised to the end of 1943.