9 8 AGE, GROWTH, AND DEATH 



before, lengthening out, as you see, at first ; then be- 

 coming very long indeed. In the following slide I 

 have another form of representation of this same phe- 



i i i r_i i i i i i i 



4 5 6 7 8 9 10 II 12 13 14 



i i i i i i i i i i i 

 15 16 17 18 19 20 21 22 23 24 25 



IG. 31. CURVE SHOWING THE LENGTH OF TIME REQUIRED TO MAKE EACH 

 SUCCESSIVE INCREASE OF 10 PER CENT. IN WEIGHT BY FEMALE GUINEA-PIGS. 



nomenon as it occurs in the human subject. Here is 

 a diagram of growth, (Fig. 32), which represents, as 

 accurately as I could determine it, the curve complete 

 for man from birth up to the age of forty years. 



