Abstract
THE latest volume of this journal contains an unusually large number of important papers. The May lecture by Dr. Benedicks deals with recent work in thermo-electricity, and gives details of the author's discovery of a thermo-electric effect in circuits composed of a homogeneous metal. These results have been published elsewhere, but they are now brought together in a concise and convenient form. The study of crystal growth in metals which have been subjected to cold work, by Prof. Carpenter and Miss Elam, contains many interesting observations. The authors were fortunate enough to find an alloy which preserves a complete record of successive stages of crystal growth on a prepared surface, and this has enabled them to trace, with remarkable clearness, the course of events throughout a variety of conditions. The difficult system of alloys of aluminium and magnesium has been investigated by metallographic methods by Mr. Hanson and Miss Gayler, the results being recorded in the form of an equilibrium diagram presenting several unusual features. A note by Mr. Dickenson, on intercrystalline brittleness produced by the action of fusible metals on brass under stress, contains facts which bear on the nature of brittleness in general, while another note reviews the evidence for the allotropy of zinc. Several papers deal with practical brass foundry questions, and another describes the experience on war vessels with regard to the corrosion of condenser tubes, on which a committee of the institute and other bodies continues to conduct elaborate investigations. The volume contains, as usual, a very large number of abstracts of papers published else where, and mention should be made of the excellence of the numerous plates of photomicrographs.
The Journal of the Institute of Metals.
G. Shaw
Scott
Vol. xxiv. No. 2, 1920. Edited by. Pp. xiv + 547 + xi plates. (London: The Institute of Metals, 1920.) 31s. 6d. net.
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D., C. The Journal of the Institute of Metals . Nature 107, 327 (1921). https://doi.org/10.1038/107327a0
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DOI: https://doi.org/10.1038/107327a0