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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 208. — Variables: Beta score X nativity. Groups I, II, III: White draft {foreign born). 

 For men who took beta only, or alpha and beta. 



Table 209. — Variables: Mental age on Stanford-Binet examination X nativity. Groups I, II, III: White draft 



(foreign born). 



For men who took Stanford-Binet examination only, or following beta, or following alpha, or following alpha and beta. 



