STUDIES IN THE REGENERATION OF BLOOD 



245 



composite food were used, that is, protein only (casein) ; carbohydrate 

 only (cornstarch) ; fat only (washed butter) ; protein-free food (butter, 

 lard, cornstarch and salt mixture) 4 and one food accessory (vitamin 

 B) in a relatively concentrated form. The sources of the food accessory 



TABLE 2 

 Blood regeneration in growing rats after a single hemorrhage on standard diet 



TABLE 3 



Blood regeneration in adult rats after a single hemorrhage on a mixed diet 



were dried brewery yeast, yeast concentrate 5 (10), tomato juice and 

 orange juice. 



4 Salt mixture, Osborne and Mendel, Journ. Biol. Chem., 1919, xxxvii, 572. 

 8 Yeast concentrate, Osborne and Wakeman (10). 



