JUN 1 9 1972 Lawrence DD Smith, M.D. 1210 BANKERS TRUST BUILDING DES MOINES, IOWA 50309 TELEPHONE 244-4191 June 13, 1972 Joshua Lederberg, M. D. Head of the Department of Genetics Leland Stanford Uni versity Palo Alto, CA, Dear Doctor: Enclosed is the article written by Robert Ardrey. I was very impressed with his territorial imperative and got a number of thoughts from it. But somehow his article in our Sunday paper did not strike me as being quite true to form. I would appreciate your judgment in this matter which is far better than anything that I could evolve. Sincerely, CEALANR peep — Lawrence D. Smith, MD. LDS:es Encl.