HARVARD UNIVERSITY 
The Biological Laboratories 
16 Divinity Avenue 
Cambridge, Massachusetts 02138 
December 17, 1979 
Dr. Donald Fredrickson 
Director of NIH 
Bethesda, MD. 20205 
Dear Dr. Fredrickson: 
I am writing to register with you my support for the revised 
NIH Guidelines for Recombinant DNA research as proposed in the Federal 
Register, Vol. 44, No. 232, pp. 69210-69251. I think it is crucially 
important that these revised guidelines be adopted. They are reason- 
able and sensible Guidelines which take into account the body of new 
information and research experience which has become available since 
the formulation and enactment of the original guidelines. 
Sincerely 
Nancy Kleckner 
Assistant Professor 
Department of Biochemistry 
and Molecular Biology 
NK: cp 
[ 508 ] 
