1. Bresciani, F., Auricchio, F., and Fiore, C., Atti Soc. Ital. Patol. VII Cong. Bologna (1961); Biochem. Biophys. Res. Commun., 8, 492 (1962).
2. Bresciani, F., Auricchio, F., and Fiore, C. (to be published).
3. Dunham, E. T., and Glynn, I. M., J. Physiol., 156, 274 (1961).
4. Post, R. L., Merrit, C. R., Kinsolving, G. R., and Albright, C. D., J. Biol. Chem., 235, 1796 (1960).
5. Schatzmann, H. J., Helv. Physiol. Acta, 11, 346 (1953).