Trans. Acad. Sci. of St. Lows. 
Age: 6 7 8 9 10 si 12 13 14 15 16 17 
Mm. Pe, G: 
| a a t ieee 
(i 
iv) ee 
— Sisey, 
120 . er a - a 
Le eeu 
116 eee + = & Sih 
Lo] 
VOL. VI. No, 12, 
Boys: Unbroken Lines. 
PLATE XXXV (from Table No. 50; pages 325, 362). 
Width of Face. 
75, 50 and 25 Percentile Grades. 
Girls: Broken Lines. 
