Strength of Materials.

NO section of engineering science has been so frequently dealt with in treatise or textbook as that which provides the title common to both publications before us. Within the past decade there have been several notable efforts along similar lines and with equally ambitious aims. Yet the older textbooks on the subject did not fail to reach high standards. There must clearly be special reasons for these newer and repeated attempts. These reasons are not far to seek. Methods of analysis have been enriched by fresh contributions applications to practical matters have been widely extended advances of great value have been made in experimental technique; and new lines of research have been rapidly developed. On every score the somewhat stereotyped forms and standardised treatment of the older books have been superseded.Materials and Structures: a Text-book for Engineering Students.By Dr. E. H. Salmon. Vol. 1: The Elasticity and Strength of Materials. Pp. x + 638. (London, New York and Toronto: Long mans, Green and Co., Ltd., 1931.) 15s. net.Strength of Materials.By Prof. S. Timoshenko. Part 1: Elementary Theory and Problems. Pp. xii + 368. 15s. net. Part 2: Advanced Theory and Problems. Pp. xi + 401–735. 18s. net. (London: Macmillan and Co., Ltd., 1931.)