38 FEEDING EXPERIMENTS WITH ISOLATED FOOD SUBSTANCES. 



10 



+ 0.05 



Chart XI. Rats xxx, xxxi, and xxxn fed on pure Casein as the only protein and Salt mixture III 

 for 42 days. Numbers on Body-weight line indicate the time at which each period began. 



005 



Chart XII. Rats xxxm, xxxiv, and xxxv fed on pure Casein as the only protein and Salt 

 mixture I for 42 days. Numbers on Body-weight line indicate time at which each period began. 



