... 7546. 2Presented in part in the Merck lecture of the Chemical Institute of Canada, June 14, 1960. See Chenz. Can. 13, 40 (1961). ... Page 7. 1598 CANADIAN JOURlUAL OF CHEMISTRY. VOL. ... Page 9. 1600 CANADIAK JOURNAL OF CHEMISTRY. VOL. 41, 1963 ...