1. cf. Evenari, M., “Biological Effects of Radiations”, 3 (McGraw-Hill and Co., New York, 1953; in the press).
2. Borthwick, H. A., Hendricks, S. B., Parker, M. W., Toole, E. H., and Toole, V., Proc. U.S. Nat. Acad. Sci., 38, 662 (1952).
3. Stein, G., Faraday Soc. Discussions, “Radiation Chemistry”, 12, 227 (1952). Evenari, M., and Stein, G., Experientia, 9, 94 (1953).
4. Kelner, A., Proc. U.S. Nat. Acad. Sci., 35, 74 (1949); J. Cell. Comp. Physiol., Supp. 1, 39, 115 (1952).
5. Dulbecco, R., Nature, 163, 949 (1949); J. Cell. Comp. Physiol., Supp. 1, 39, 125 (1952).