March 2, 1965

The Honorable Lister Hill
United States Senate
Washington, D. C.

Dear Senator Hill:

Dr. Ralph Knutti of the National Heart Institute called me to ask whether
I could contribute a statement to the hearings before your committee
concerning system development on the mechanical heart pump. As I had
taken my own initiative some while ago to urge exactly what the Institute
now proposes, I am in full support of this program.

{ regret it would be awkward for me to leave my duties here for a personal
appearance. However, I doubt if I could contribute much more than I have
written down for the statement enclosed.

With cordial best wishes and appreciation for your long-standing personal
interest in problems of medical research,

Sincerely yours,

Joshua Lederberg
Professor of Genetics

be: Dr. Ralph Knutti