THE EVOLUTION OF DEATH 



6 9 



Figs. 29 and 30. Even more striking is the rate in rabbits, 

 which immediately after birth may reach for the males almost 

 1 8 per cent, per day, and for the females 16 per cent., Fig. 

 31, A and B. 



We encounter similar phenomena in man, but since man 

 grows much more slowly than the three species of animals, 



100% 



20% 

 10% 



Years! 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 



FIG. 32. Curve of the yearly percentage increase in weight of boys. Reckoned 

 from H. H. Donaldson's table. 



the growth of which we have studied, I have reckoned the 

 increases as yearly percentages, Fig. 32 represents the rate of 

 growth for boys, Fig. 33 for girls. The curves fall at first 

 with great rapidity, later much more slowly. Fig. 34 shows 

 the alterations in the rate of growth in another form. The 

 curve corresponds to the observed average weights in the male 



