UNIVERSITY OF NOTRE DAME
REV. JOHN A. O'BRIEN, PH. D.

NOTRE DAME, INDIANA 46556

February 27, 1969

Dear Professor Lederberg:

Many hearty thanks for your kind letter
and enclosures, which I read with deep interest.

Your warm words of encouragement will
hearten me to continue the struggle for the
use of some simple and effective method of
controlling the world's soaring population.

I shall share your splendid letter with
the editors of The Reader's Digest, and I am
sure they would want to join me in this hearty
word of gratitude.

Ever cordially,
mi fa D> “,
Con (fh. CAPA
y