220 



200 



'+0.05 - 



20 



40 



60 



80 100 120 



Days 



Chart XIV. Rat 23 fed 135 days on pure Casein as the only protein, Diet 4, p. 33. 



4-0 



240 



220 



200 



70 



50 



30 



0.05 



-0-10 



20 40 60 80 100 120 140 160 180 



Days 

 Chart XV. Rat 24 fed 169 days on pure Casein as the only protein, Diet 4, p. 33. 



