TH. DOBZHANSKY is on the staff of the 

 Rockefeller Institute. For his pioneer 

 book on population genetics, Genetics 

 and the Origin of Species, the National 

 Academy of Sciences awarded Professor 

 Dob/hansky its Elliot Medal and Prize. 

 Among his other books are Evolution, 

 Genetics, and Man; Mankind Evolving; 

 Heredity, Race, and Society (with L. C. 

 Dunn); Principles of Cxenetics (with Ed- 

 mund W. Sinnott and L. C. Dunn); Ra- 

 diation, Genes, and Man (with Bruce 

 Wallace). Professor Dobzhansky is a 

 member of the National Academy of Sci- 

 ences and the American Philosophical 

 Society. 



