MAY 28 1963

UNITED STATES
DEPARTMENT OF THE INTERIOR
WASHINGTON

 

OFFICE OF
ASSISTANT SECRETARY

May 26, 1969

Dear Josh:

Thank you for the material on chlorine. I will try to keep
my eye on this matter.

I heard that you have been writing on the problem of nickel

as an environmental pollutant. Could you send me a copy of dl

that article plus any back-up material you may have.

Cordially yours, Ye

S, Fred Singer
Deputy Assistant Secretary

Dr. Joshua Lederberg
Department of Genetics
School of Medicine

Stanford University
Stanford, California 94305

; ( JUN 3 1969
File; Orr H.