768 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



GRADES, 0-4 YRS. 



GRADES. 5-6 YRS. — 

 HIGH SCHOOL, I -4 YRS. — 

 COLLEGE, 1-4 YR5. — 

 COLLEGE, 5 YRS. & OVER- 



Figs. 32 and 33. Distribution of alpha and beta scores. The white native-born draft group is here broken up according to schooling to show the 



intelligence scores which successive amounts of schooling accompany. 



Table 311.— Per cent distribution of alpha scores. White draft (Joreign oj Groups I, II, III) oj different schooling. 



