1. Cox, R. P., and MacLeod, C. M., (in preparation).
2. Torriani, A., Biochim. Biophys. Acta, 38, 460 (1960).
3. Moog, F., in Cells, Organism, and Milieu, ed. by D. Rudnick (Roland Press Co., New York, 1959).
4. Valentine, W. N., Follette, J. H., Hardin, E. B., Beck, W. S., and Lawrence, J. S., J. Lab. and Clin. Med., 44, 219 (1954).
5. Huggins, C., and Talalay, P., J. Biol. Chem., 159, 399 (1945).