The influence of a meat diet on the kidneys. 



19Ö 



the kidnej^s calculated from the weight of the animals at death. The 

 duration of the special feeding and the mortality are also stated. As 

 there are difficulties in the way of drawing deductions from the 

 records of animals which had lost much weight during the observation, 

 I «these are excluded and attention is directed solely to the kidneys of 

 1 animals which had not materially lost weight on the meat diet. In 

 experiments I. and II. a certain loss of weight recorded in the case 

 of the meat-fed subjects is balanced by a corresponding loss in the 

 case of the controls. 



Table I. Adult Bats. 



No. of 

 animals 



Diet 



Duration 



Mortality 



Maxm. 

 weight 



Wt. at 

 death 



Wt. of 

 kidneys 



Per- 

 centage 



7 

 7 

 6 



Horse-flesh 



Porridge 



Bread and Milk 



4-6 mos. 

 4-6 „ 

 4-6 „ 



■ 2 

 1 



1535 

 1812 

 1212 



1250 

 1505 

 1212 



16,45 

 16,55 

 12,95 



1,32 



1,09 

 1,06 



Table II. Castrated Female Rats. 



No. of 

 animals 



Diet 



Duration 



Mortality 



Maxm. 



weight 



Wt. at 

 death 



Wt. of 

 kidneys 



Per- 

 centage 



5 



5 

 3 



Horse-flesh 



Eice 

 Porridge 



4-5 mos. 

 4-5 „ 

 4-5 „ 



4 

 1 



825 

 772 

 470 



740 

 740 

 465 



9,25 



7,40 

 4,55 



1,27 

 1,00 



1,02 



Table III. Young Rats, 

 a. Meat diet commenced when animals were 2 — 3 months old. 



No. of 

 animals 



Diet 



Duration 



Mortality 



Maxm. 

 weight 



Wt. àt 

 death 



Wt. of 

 kidneys 



Per- 

 centage 



.') Horse-flesh 



1 Bread" and Milk 

 3 Ox-flesh 



3 I Bread and Milk 4 



8 mos. 







525 



525 



7,15 



6 ,. 



— 



170 



170 



1,60 



4 . 



' 



471 



471 



5,79 



^ :, 







544 



544 



4,78 



1,36 

 0,94 

 1,23 



0,88 



