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NATIONAL INSTITUTE OF ARTHRITIS AND METABOLIC DISEASES

NATIONAL CANCER INSTITUTE Bethesda 1h » Maryland

NATIONAL INSTITUTE OF DENTAL RESEARCH November 7, 1956
NATIONAL HEART INSTITUTE

NATIONAL INSTITUTE OF MENTAL HEALTH
NATIONAL MICROBIOLOGICAL INSTITUTE
NATIONAL INSTITUTE OF NEUROLOGICAL DISEASES AND BLINDNESS

THE CLINICAL CENTER AIR MAIL

DIVISION OF RESEARCH GRANTS

Dr. Joshua Lederberg
Department of Genetics
University of Wisconsin
Madison, Wisconsin

Dear Josh:

My warmest congratulations on a beautiful job of work. Like so many
classics, once the solution is pointed out, it seems simple, and
most of the pieces fall into place. The trick of course is to point
out the solution.

It was good of you to ask for our reprints on tissue culture. ‘hey
were sent under separate cover yesterday, and I wish you could be
enticed into this field.

I was sorry to have missed you last Saturday. Next time, please let
me know you are coming and plan either to stay with us,or at the very
least, to spend an evening if time won't permit more.

My best to Esther.

qoratatty,

Aw

yHearry Eagle, Chief

T axperine tal Therapeutics
National Institute of Allergy
and Infectious Diseases

HE: bfb