At the agricultural experiment station of Pennsylvania State College, veterinarians trussed up Jessie, two-year-old heifer, and plugged her as though she were a watermelon. Dr. S. L. Bechtel of the station had noted that Heifer Jessie's milk contained Vitamin B, although none of the fodder she ate carried any. The question whether Jessie manufactured her own Vitamin B was very important.
There are only five vitamins known. Vitamin A stimulates body growth; Vitamin B prevents neuritis (beriberi is a characteristic disease following deprivation of this essential) ;...
To continue reading:
or
Log-In
