NOV 12 1969

KAROLINSKA TasTape1ret

STOCKHOLM 60, SYS ERE N

 

November 6, 1963
DErarraent ov BacrioRioLoOGy

 

Professor Joshua Lederberg

Stanford University School of Medicine
Department of Genetics

Stanford Medical Center

300 Pasteur Drive

Palo Alto

California ~ USA.

Dear Professor Lederberg,

Thank you very much for the letter of October 31, 1963
and for the enclosed copy of your letter to Dr. Gibbons. The
information will be most useful for the evaluation of possib-
le consequences of planetary contamination, and I greatly
appreciate your prompt reaction on my request.

With kindest regards.

incere ours, ae
On
~_ {4 ~

C.-G. Hedén