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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 436. — Variables: Score on single alpha test X test. Group: White draft (Group I). 

 For men who took alpha only or alpha and beta. 



Table 437. — Variables: Score on single alpha test X lest. Group: Colored draft (Group IV). 

 For men who took alpha only or alpha and beta or alpha and an individual examination. 



