1. Luria, S. E., Bact. Rev., 11, 1, 40 (1947).
2. Stone, S. W., Wyss, O., and Haas, F., Proc. Nat. Acad. Sci., 33, 59, 66 (1947).
3. Lederberg, J., and Tatum, E. L., J. Biol. Chem., 165, 381, 82 (1946).
4. Beadle, G. W., Chem. Rev., 37, 15, 96 (1945).
5. Muller, H. J., Proc. Roy. Soc., B, 134, 1, 37 (1947). Spiegelman, S., Cold Spring Harbor Symp., 11, 256, 77 (1947). McIlwain, H., Nature, 158, 898, 902 (1946). Hinshelwood, C. H., "The Chemical Kinetics of the Bacterial Cell" (Oxford, 1946).