Trans. Acad. Sci. of St. Louis. 
N 
. 
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ry 
. 
‘ 
‘| 
‘) 
a 
. 
% 
v 
| 
VOL. VI. 
NO. 12, 
PLATE XXXVIL (from Table No. 17; pages 312, 325). 
Percentile Grades. 
Weight. 
Boys: Unbroken Lines. Girls: Broken Lines. 
