"Well, I reckon you've been a pretty good horse," said the farmer. "You work hard and I ain't had to call the vet on you much. I only wish you pulled the plow a little faster."
"NO!" said the horse, "I said 'feedbag' not 'feedback'."
Elmer McCollumBorn 3 Mar 1879; died 15 Nov 1967 at age 88.American biochemist who originated the letter system of naming vitamins. He discovered vitamins A, B and worked with others on vitamin D. He performed extensive research work in nutrition and growth. He was the first in the U.S. to establish a colony of white rats as laboratory animals to be the subject of his nutrition experiments. In the 1910's, he recognized that a healthy diet required certain fats, and he named the essential component "fat-soluble A," as distinct from another he named "water-soluble B." Although at first he thought each was a single compound, he later showed that they were in fact complexes. He researched how certain minerals were important as nutrients, including calcium, phosphorus, fluorine, manganese and zinc.« |
