THE JOHNS HOPKINS UNIVERSITY
SCHOOL oF HYGIENE AND PusLic HEALTH

615 NORTH WOLFE STREET @»
BALTIMORE-S, MARYLAND
OEPARTMENT OF BICCHEMISTRY

March 26, 1962

Professor Joshua Lederberg
Department of Genetics
Stanford University
School of Medicine
Palo Alto, California
Dear Josh:
I hope to be in Palo Alto Thursday, April 26th and would like very much
to have a chance to talk with you if you expect to be in.
We have been producing some mutants or new markers on "single stranded

(denatured) DNA and I have heard that you were once interested in this area.

If our results are similar perhaps we could avoid an uncomfortable situation.

QyIl444 fi

Best regards.
Sincerely yours,
oO
hege
Roger M. Herriott

Ris:esm

Dear Roger--~

I'm afraid I will be out of the country then, but I am sure that Dr.
Nester or Dr. Bodmer will be delighted to talk to you. We have not had
so very striking results on mutagenic treatments on denatured DNA, and will
be delighted to hear your findingés