THE UNIVERSITY OF TEXAS
AUSTIN 12

DEPARTMENT OF ZOOLOGY March 16, 1948

Dr. Joshua Lederberg
Department of Genetics
University of Wisconsin
College of Agriculture
Madison 6, Wisconsin

Dear Dr. Lederberg:

Thank you for your letter and your
criticisms. We will try to clear up some of the
points you raised. We have considered using phage
resistance but have not anyone here who is used to
working with this technique. Perhaps we can send
one of our men for a training course this summer.

We have not done any more on the problem
of specific mutations end are leaving it until we
get the equipment to work on specific compounds.

We have rather limited facilities here and so make
the best of what we have.

I am enclosing the catalase paper. You
can return it at any time you choose, but we would
like your comments and criticisms as soon as you
have time to make them. »

Yours sincerely,
Wilson §. Stone
Professor of Zoology

WSS/1k
enclosure