THE UNIVERSITY OF CHICAGO 
DEPARTMENT OF BIOPHYSICS AND THEORETICAL BIOLOGY 
CUMMINGS LIFE SCIENCE CBNTBR 
920 EAST 5 8 T H STRBET 
CHICAGO • ILLINOIS 60637 
23 August 1978 
Dr. D. Frederickson 
Office of the Director 
National Institutes of Health 
Bethesda, Md. 20014 
Dear Dr. Frederickson: 
After reading the revised guidelines for Recombinant DNA research 
I find them extremely appropriate. They provide the necessary safeguards 
to conduct reconbinant DNA research with the possibility of performing 
experiments which eventually will yield further advancements in all areas 
of biological research. 
Sincerely yours. 
1 
Lucia B. Rothman-Denes 
Assistant Professor 
LBRD/bpm 
[A-38] 
