1. Racker, E., in Mechanism of Enzyme Action, edit. by McElroy, W. D., and Glass, B., 464 (Johns Hopkins Press, Baltimore, 1954).
2. Velick, S. F., in Mechanism of Enzyme Action, edit. by McElroy W. D., and Glass, B., 491 (Johns Hopkins Press, Baltimore, 1954).
3. Cori, G. T., Slein, M. W., and Cori, C. F., J. Biol. Chem., 159, 565 (1945).
4. Caputto, R., and Dixon, M., Nature, 156, 630 (1945).
5. Taylor, J. F., and Lowry, C., Biochim. Biophys. Acta, 20, 109 (1956).