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COMMUNIC.%TIONS TO THE EDITOR
111, is of interest because of its analogy t o the high reactivity of enzyme-substrate c ~ m p l e x e s . * ~ J , ~ Acknowledgment.-This research was supported by the U. S. S r m y Office of Ordnance Research. Helpful discussions with Dr. J. F. Brown, Jr., and Professors A I . L. Bender, C. G. Swain and F. H. If-estheimer are gratefully acknowledged. ( 5 ) H. M o r a a e t z and E. M. Westhead, Jr., J. Polymer 2 i 3 (1955). (6) 11. I, Bender, TaIs JOCJRNAI.. 1 9 , 1238 (1957). D E P A R T M E N T O F CHEMISTRY P O L Y T E C H N I C INSTITCTE O F B R O O K L Y N
BROOKLYY1, SEW YORK
Sci., 16,
ET, M O R A W E T Z 1, ORI
