THE EVOLUTION OF DEATH 



200% 



100% 



30% 

 20% 

 10% 



Years 1 



3456 



8 9 10 11 12 13 H 15 16 17 18 19 20 21 22 23 



FIG 33. Curve of the yearly percentage increase in weight of girls. Reckoned 

 from E. H. Donaldson's table. 



FIG. 34. Curve of human growth in weight, with vertical lines to mark the dura- 

 tion of loper-cent. increases. 



