I 

ÜbervöU;:erung B 118.4-73 

I 

H a r rar, J. George: The Race bet\"loen pro-

I creation and food production. Prepared from 
I 

a paper presented at the spring meeting of 

I 

the Ar.18rican Philosophical Society in Phila-l 
delphia, 1965.-New York6 The RockefeIler 
Foundation 1965. 29 S. 8