Word: acidity
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Dates: during 1940-1949
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...flotation process, ores are first ground to powder and mixed with a frother. This is an oil or an acid which attaches itself to some powder particles but not to others. Then the ores are dumped into water and stirred (usually by compressed...
...generations of History 1 students, Roger B. Merriman '96, Gurney professor of History and Housemaster of Eliot House, last night in the Union advised all Freshmen that "their first duty in this period of national emergency is to keep themselves physically, morally, spiritually and socially fit for the acid test that is to come...
...cevitamic acid, is abundant in citrus fruits, tomatoes, green vegetables...
...complex, for practical purposes, is really a group of eight different chemicals. They are all found in liver and brewer's yeast; some of them also occur in whole grains. Their chemical names: thiamin (B1), riboflavin (B2), pyridoxine (B6), inositol, pantothenic acid, nicotinic acid, biotin and folic acid (first described last week by Dr. Roger John Williams of Texas). To keep up B requirements, Dr. Tom Spies of Birmingham, Ala. suggested a daily sandwich of yeast and peanut butter on peeled wheat bread (made from grain with only the thin outer tissue removed...
...Para-aminobenzoic acid reputedly turns grey hair dark again-but it raises blood pressure and, if sulfa drugs are given, it combats their curative powers. Another vitamin, pyridoxine, turns hair grey-but it is essential for red blood cells and digestion...