CHESTER A. STEWART. 



The unusually rapid growth of the test animals is more strik- 

 ingly shown in charts C and D, in which the growth curves of the 

 rats refed after seven weeks of maintenance are superimposed 

 upon the growth curves of the normal rats, so that their starting 



20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 



Age in Days 



CHART A. Males. Chart showing the average absolute increase in weight of 

 the control male rats from the age of three weeks, and also of the test males refed 

 after various periods of maintenance. The curves are drawn through points rep- 

 resenting the averages of the individual weights of the rats of litters S8, Sg, and 

 814, at the various periods. Body weight in grams is represented on the ordinate 



and age in days on the abscissa. Controls. Rats refed after one 



week of maintenance. Rats refed after three weeks of maintenance. 



- Rats refed after seven weeks of maintenance. 



points coincide. The curves thus constructed show an initial 

 rapid divergence due to the more rapid growth of the test rats 

 during the first few weeks of refeeding. Thus the stunted rats 



