Trans. Acad. Sci. of St. Louis. 
iameenn Tt eee ee] 
70 
60 = 
ane a 5 eeu oT <a 
aoe. = 30 
— ee gare 1 << i ee Se a 
— es a = ps ae 20 
Bes a I = we = 
ptt 5 coal ae ee 
—— = a cai ee ra 
: rae a a Lo a 
— bara nie - 
pee eee 4 ee] see 4e7* 
acon 
ae = a 
a wrsil ae a os 
b - 
— 
VOL. VI. NO. 12. PLATE XLI (from Table No. 23; pages 318, 325). 
Boys: Unbroken Lines. 
Percentile Grades. 
Girth of Chest. 
Girls: Broken Lines. 
