147

THE UNIVERSITY OF NORTH CAROLINA
AT

CHAPEL HILL

THE SCHOOL OF PUBLIC HEALTH

DEPARTMENT OF
ENVIRONMENTAL SCIENCES AND ENGINEERING

Box 630
Chapel Hill 27514

919: 966-1171

February 6, 1970

Dr. Joshua Lederberg
Stanford University School of Medicine
Palo Alto, California 94304

Dear Dr. Lederberg:

I have a copy of the mysterious" Prevention article I
recently asked you about. I am sending a few excerpts which
might interest you, including the reference to your Washington
Post article on chlorination.

The table of contents tells something of Prevention's
viewpoint, It's also full of advertisements for food supple-
ments, vitamin pills, exercise equipment, hearing aids, and
such interesting products as garlic capsules containing
chliorophyl, yogurt pills, and pumpkinseed extract. Prevention
claims a circulation of 500,000.

Respectfully, |
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