1 8 Ada Springer 



Though the three individuals were fed the same amount of beef, 

 both of the males lost in weight, while the female gained 2.4 

 per cent of the initial weight. 



In Set E^ (Table XXV) at high temperature (30° C), individual 

 records of two males and one female were kept. Each animal was 

 fed about forty times during the period. The initial weights and 

 percentages were as follows: 



Here again the percentage in the female was considerably higher 

 than in the males. 



From the tables, however, it will be noticed that the initial 

 weights of some of the females are less than are those of the males. 

 The question arises as to whether the difference in percentage 

 increments might not be due to this fact rather than to sex. 



{h) hjitial weight. By comparing the records of the five males 

 in Table XVIII, it will be found that although there are exceptions, 

 the animal whose initial weight is greatest shows the least per- 

 centage increment, as in the following: 



In. wt. Increment 



grams per cent 



No. (3) 1 .577 38.9 



No. (2) - ■ 787 20.1 



These two weights represent the extremes and lying between them 

 are gradations, showing that as the initial weight increases, the 

 percentage increment decreases. 



By a comparison of the five females in (Table XIX), the results 

 are in general the same, as follows: 



In. wt. Increment 



grams per cent 



No. (2) 1.237 64,8 



No. (3) 2,222 22.7 



The greater the initial weight the less the percentage increment 



