1. Anonymous, Osaka, Japan: Boshoku Zasshischa (1939). Nylon (in Japanese).
2. Allen, W. M., J. Biol. Chem.98, 591 (1932). The preparation of progestin. (CA27, 530.)
3. Almquist, H. J., and Klose, A. A. (to Merck and Co.), U. S. 2,280,777, Apr. 28, 1942, appl. Feb. 7, 1940. Product of vitamin K activity. (CA36, 5618.)
4. Askew, F. A., Bourdillon, R. B., Bruce, H. M., Jenkins, R. G. C., and Webster, T. A., Proc. Roy. Soc. (London)107 B, 76 (1930). Distillation of vitamin D. (CA24, 5802.)
5. Associated Electrical Industries, Ltd., Polish 11,592, Jan. 28, 1930, appl. Aug. 16, 1928. Process and apparatus for vacuum distillation. (Chem. Zentr.1931, II, 1237.) (Similar to Brit. 303,078-79, C. R. Burchet al.)