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...bacteria, whose acid excretions etch away calcium from the teeth. These bacteria cannot live in human saliva unless sugar is present; and since sugar does not occur in normal saliva, they must get their nourishment from food taken into the mouth. Says Dr. Hill: "When diets are followed which contain a rigid restriction of sugar, these acid-forming organisms rapidly disappear from the saliva...
Divided into many sections, the book will contain pertinent information on military etiquette, specifying when to salute an officer, when to salute the flag, and the correct time and manner of wearing the uniform...
Successor to the old Union Committee, which handled most Freshman social arranging in the past, the Class Committee will contain eight men drawn from each of the dormitories in the Yard, who will serve short terms as members of the Student Council. Under the new plan. Freshman representatives in the Council will be arbitrarily selected in any way which seems best at the time...
...first pipe or two disappointed him, but he persisted, hoping for the dreams of which he had read. These came eventually and one of them, which recurred over some weeks, seemed to him to contain the key to the secret of the universe. With an enormous effort he managed one night to write the secret down. The denouement, he says, was disappointing, for on the following morning he read 'The banana is great, but the skin is greater...
Most vanadium used in the U.S. has been imported from Peru and Southwest Africa. Now vanadium can be extracted from Idaho phosphate deposits. Hitherto this has been impracticable because Idaho's 6,000,000,000 tons of phosphate rock contain only 500,000 tons of vanadium, a mere one-tenth to one-fourth of one per cent vanadium. This concentration would be too low for practicable extraction, were it not for the fact that Anaconda Copper Co. is already processing over 100,000 tons of phosphates a year as fertilizer. From this tonnage some 200 to 250 tons...