Word: zinc
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Dates: during 1930-1939
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...Cancer may be started by syphilis germs, certain viruses and tapeworms, or by application to the skin of simple chemicals (arsenic, chloride of zinc) and coal tar substances. But continued irritation does not cause cancer...
...Last week at the Milwaukee convention of the American Chemical Society, brilliant young Dr. Rothemund reported that he had finally "activated" chlorophyll in his laboratory. When chlorophyll is heated in certain organic solvents it exhibits chemiluminescence (radiation at low temperatures): gives off "a beautiful red glow." The magnesium or zinc salts of porphyrins also exhibit chemiluminescence when heated in the same manner. Thus chlorophyll not only absorbs light but somehow transforms it and gives it forth again. At present Dr. Rothemund is trying to "correlate the amount of energy dissipated by this radiation to the amount of chlorophyll decomposed...
...contracts to buy or sell in cocoa, copper, corn, cotton, hides, oats, rubber, sugar, wheat, wool and pepper. In the warehouse it held cocoa (179,482 lb.), lead (659,836 lb.), pepper (785,600 lb.), rubber (67,036 lb.), sugar (1,344,000 lb.), wool (51,751 lb.) and zinc (120,046 lb.). An investor who held 2% of Commodity Corp.'s outstanding shares on December 31 thus owned 2% less costs of each of these tangible properties, could sell out at liquidating value whenever he desired. If such a stockholder can find no buyer on the open market...
...fifty-five metallic groups, only fifteen have been extensively utilized utilized. From ancient times, gold, silver, Iron, copper, tin, zinc, lead, and mercury have been used. And within recent years the aluminum, antimony, bismuth, cadmium, chromium, cobalt, and nickel groups have also found uses...
...price of tin to 56? per lb., down 10? from the year's high. Panicky selling spread to other metals, first in London, then the U. S. Two successive cuts in U. S. copper left the price at 12? per lb., compared to the March high of 17?. Zinc fell from 7¼? per lb. to 6½? and lead to 6? per lb., having touched 7½? early this year...