OAK RIDGE NATIONAL LABORATORY

OPERATED BY

UNION CARBIDE NUCLEAR COMPANY

Tre)
CARBIDE

POST OFFICE BOX Y
OAK RIDGE, TENNESSEE

July 3, 1968

Dr. Joshua Lederberg

Department of Medical Genetics
Stanford University School of Medicine
Stanford, California 94305

Dear Dr. Lederberg:

In your newspaper column you recently discussed the work of
Dr. James Cleaver on repair replication in Xeroderma pigmentosum.
I therefore thought you might perhaps be interested in the results
of our studies on the excision of ultraviolet-induced pyrimidine
dimers in human cells. We have wished for sometime to extend these
studies to the cells of Xeroderma but as yet have been unable to
secure suitable cell cultures for this purpose.

 

I read your columns with interest and hope you will continue

     
  

them.

Yours truly,
ames*’D. Regan
lology Division

JDR:fy

Ene losure