AILWAI BTATIONS AND RX?RRllS (C.N.R. & C.?.R.) AN0 l’RUWRA?HlC ADoRwa: sm. ANNR OR ms. QUE. MACDONALD COLLEGE OF MCGILL UNIVERSITY November lGth, 1949 Dr. Joshua Lederberg, Department of Genetics, University of Wisconsin, Madison 6, wis., U. S. A. Dear Joshua:- I just chanced upon an article which I thought you might be interested in reading. Since it is in a Commercial Home Organ I thought it possible you might have missed it, so may I suggest the reference to you as follows :- Bacteriology and Chemical Kinetics. Endeavour 8 : 151-156. No. 32, October 1949. Imperial Chemical Industries, Nobel House, Buckinghsm Gate, London, S.W.l, England. Sometime I'd be interested in hearing your comments on this article. Carolyn and I are enjoying Canada very much. The late fall here has been very beautiful and we have driven around a lot seeing the country. Macdonald Campus is among the most beautiful I have ever seen. It has been a pleasure to get away from the crowded conditions of Wisconsin campus and see well kept, large expan- ses of lawn again. Please say "hello w to Esther for both of us. Best regards, BIB/AM Robert I. Brawn, Asst. Professor of Agronomy.