October 5, 1955

Mr. Richard Herpers
Secretary, Columbia University
New York 27, N.Y.

Dear Mr. Herpers:

I have not been able to reply sooner to your letter of Septemberd2l, as I
was out of tom. For the same reasons, I regret that I will not be able to re-
present President Kirk at the redédication of our Historical Library this week-
end.

Yours sincerely,

Joshua Lederberg
Professor of Genetica