ARCHER E. KNOWLTON, associate editor of the Electrical World (United States), in a review (J. Inst. Elec. Eng., 89, Pt. 1, No. 18, June, 1942) of electrical engineering progress in the United States during the past 2-2 1/2 years, points out that in 1941 and after, investigation and research have been redirected substantially towards military measures. Many developments arising out of the pressure for superior arms of every description are already regarded as having great import for the resumption of peace-time pursuits. Weights of electrical equipment are likely to be reduced as the results of iron research, and working temperatures of many kinds of equipment may be increased on account of alloy research.