Raymond Pearl 
55 
DiAGBAM VI. Probable Brain-weight with given Age. 
Swedish ^ Young. 
1450 
1400 
1350 
1300 
< 
c 
■) 
— — _^v, 
) 
— ■ — < 
< 
) 
22-5 27-5 32-5 37 5 42 5 47 5 
Af)c ( = a) m years. 
Diagram VII. Probable Brain-weight with given Age. 
Swedish ? Young. 
i 1350 
s 
5-. 
1300 
« 1250 
.s 1200 
< 
) 
( 
< 
22-5 27-5 32-5 37 5 42 5 47'5 
Age ( = a) in years. 
Diagram VIII. Probable Brain-weight for given Age. 
Hessian c? Young, 
1450 
1400 
17-5 22 5 27-5 32 5 37 5 425 475 
Age ( =a) in years. 
