* Research carried out at Brookhaven National Laboratory under the auspices of the U. S. Atomic Energy Commission. t Present address: Department of Pharmacology, New York University Medical College. § On leave of absence from the Weizmann Institute of Science, Rehovoth, Israel. 1 Szent-Gyorgyi, A., in 2nd edition, Chemistry of Muscular Contraction (New York: Academic Press, 1951). 2 Weber, H. H...
