Some Books Recently Received

Professor Kármán combines lucidity with penetration in accounts of his own investigations, and his surveys of research, which have been presented to conferences from time to time, have shown his capacity for explaining the results of specialized research to general scientific audiences. In collaboration with Professor Biot he has now written a book on mathematical methods in engineering with the aim of tempting the practical engineer occasionally to abandon the laboratory for the study. To be successful in this difficult task it is necessary that the presentation should be interesting, and the material closely linked with practical engineering, and, in addition, it is desirable that an understanding of the arguments given in any one chapter should not depend on a detailed knowledge of the earlier chapters. The authors have been successful in attaining these objects and a copy of this book would be a valuable addition to any engineering library.