The water-soluble B-vitamins

Maintenance nutrition in the pigeon. Further evidence for the presence of dietary essentials in yeast and liver and their relation to vitamin B6

“…We think it desirable to present in greater detail the evidence for these findings. By the use of methods which differ somewhat from our own, Edgar et al [1938] have obtained fuller's earth eluate fractions of liver and yeast which supplement the activities present in the corresponding fuller's earth filtrates in relation to rat nutrition. With regard to vitamin B6 they make the important statement " Since the crystalline vitamin completely replaces our eluate fractions in the diet of the rat, it seems probable that vitamin B6 is the only essential nutrient for the rat present in our yeast and liver eluates.…”

The vitamin B2 complex of liver: The identity of the liver filtrate factor with pantothenic acid

“…The method used for the estimation of liver filtrate factor differed from that previously described [Edgar et al 1938] only in that crystalline synthetic vitamin B6 was used as a supplement instead of a liver or yeast fuller's earth eluate colitaining that yitamin. The young rats repeived our cooked starch diet and as Table 2.…”