THE recent quarterly part of the "Bibliography of Seismology", edited by Mr. Ernest A. Hodgson, concludes the record for the year 1936 (Pub. Dominion Observatory, Ottawa, 12, 1936–37). The value of the work will be evident from the fact that the number of entries for the year is 429. To a great extent, the practice of adding notes on, or abstracts of, the memoirs is abandoned. On the other hand, the useful plan of giving references to notes or articles in various scientific journals—such as NATUBE, Science, etc., and the Proceedings of such bodies as the Academy of Sciences of the U.S.S.R., the Geodetic Survey of India and the Society of Petroleum Geophysicists—is extended. The countries in which earthquakes are studied are now so well represented on the list of contributors that few, if any, memoirs of importance can escape notice. The last number contains a useful subject-index under more than fifty headings.