1. Fluoroacetate: Buffa, P., and Peters, R. A., J. Physiol., 110, 488 (1949). Fluoro-carcinogenic amines: Miller, J. A., Miller, E. C., and Finger, G. C., Cancer Res., 13, 93 (1953); Miller, J. A., Sandin, R. B., Miller, E. C., and Rusch, H. P., Cancer Res., 15, 188 (1955). P-Fluorophenylalanine: Armstrong, M. D., and Lewis, J. D., J. Biol. Chem., 188, 91 (1951). McCombie, H., and Saunders, B. C., Nature, 157, 287 (1946). 9-a-Fluorocortisone: Fried, J., and Sabo, E. F., J. Amer. Chem. Soc., 76, 1455 (1954).
2. cf. Stock, C. C., “Advances in Cancer Research”, 2, 426 (1954).
3. Rutman, R. J., Cantarow, A., and Paschkis, K. E., Cancer Res., 14, 119 (1954). Leibman, K. C., and Heidelberger, C., Fed. Proc., 14, 243 (1955).
4. Hakala, M. T., Law, L. W., and Welch, A. D., Proc. Amer. Assoc. Cancer Res., 2 (2), 113 (1956).
5. Duschinsky, R., Pleven, E., and Heidelberger, C. (in preparation).