756 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 297. — Variables: Alpha X schooling. Group V: Colored draft, North. 

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



Table 298. — Variables: Beta X schooling. Group V: Colored draft, North. 



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



an individual examination. 



