FEEDING EXPERIMENTS WITH ISOLATED FOOD SUBSTANCES. 49 



0.10 



Chart XIX. Rat 71 fed 286 days on Casein and Glutenin as the only proteins. See p. 48. Numbers on 

 Body-weight line indicate time at which each period began. 



220 



200 



180 



60 



4-0 



20 



+ 0.05 - 



10 



E 



(D 



o 



-0.10 



20 



40 



60 



80 



Days 



100 



120 



14-0 



Chart XX. Rat 72 fed 141 days on Casein and Glutenin as the only proteins. Numbers on 

 Body-weight line indicate time at which each period began. 



