Memo from T JOSHUA LEDERBERG o: Mr. Kent SEP 28 1971 re: preserving species I am interested to hear of your efforts, and am in your specific aims; but I could not lend my name to your fund-raising activities without taking a more active role in your program than is possible. Also, I am encouraging some other effort along related lines closet to here. You may freely quote the enclosed article in sup port of your program provided you leave no impli- cation that I have personally endorsed your parti- cular organization. Sincerely, P.S. I would urge you not to include the preserva- tion of human embryos (for the implied purpose of resuscitation) in your program -~ this brings in many other issues, likely to obstruct the conserva- tion of ‘wildlife’.