Oct. 1,1921 Biological Analysis of Georgia Velvet Bean 



of over five months when only 20 per cent velvet beans served as a 

 source of that vitamin. 



200 



/80 



/60 



MO 



/20 



/OO 



80 



60 



40 



Fig. 5. — Gain in weight of lot 69 oa ration of velvet beans, 40 per cent; butter fat, 5 per cent; casein, 9 

 per cent; and dextrin, 46 per cent. The dextrin carried alcoholic extract of 10 gm. ether-extracted wheat 

 embryo. At point x 4 per cent dextrin was replaced by 4 per cent No. 32 salts. 



A considerable improvement in the character of growth is obtained 

 when the plane of intake of velvet beans used to supply the fat-soluble 

 vitamin is reduced from 80 to 60 per cent (fig. 9) . 



Fig. 6. — Gain in weight of lot 75 on ration of velvet beans, 40 per cent; butter fat, s per cent; sodium 

 chlorid, i per cent; clacium carbonate, 1.5 per cent; casein, 9 per cent; and dextrin, 43.5 per cent. The 

 dextrin carried alcoholic extract of 10 gm. ether-extracted wheat embryo. 



When the level of velvet bean intake was reduced to 40 per cent, 

 normal growth was obtained. Rat 270 failed to rear her young, although 

 her litter was reduced from eight to four (fig. 10). 



