(1) Much of the material of this paper was presented in summary:(a) before the Organic Division of the American Chemical Society, St. Louis, September, 1948:(b) at the Eleventh National Organic Symposium, Madison, Wisconsin, June 21, 1949, page 65 of abstracts; ic) at Montpeilier, France, April 26, 1950 [Bull. sac. chim., I51 18 55C (1951) j. Paper XVII, THIS JOURNAL, 73, 4669 (1950).(2) From the Ph. D. Thesis of LL Ingrahcam, UCL A,, 1949.(3) ...