wv JUN 1 6 1964

Smith Kline & French Laboratories - 1500 Spring Garden Street, Philadelphia 1, Pa.

Research and Development Division

June 12, 1964

Dr. Joshua Lederberg

Stanford University School of Medicine
Stanford Medical Center

Department of Genetics

300 Pasteur Drive

Palo Alto, California

Dear Dr. Lederberg:

Thank you for your letter of May 29, 1964. I am glad that the data
we supplied was of some use, and I would like to thank you for keeping
the data confidential for us. Should we be able to help you in the
future in related areas, do not hesitate to call on me.

piadyog

I hope we will have an opportunity to talk again on a future trip
west.

Best regards,

Sincerely yours,

WA ar Atreh—
MG:hk Maxwell Gordon