Word: graded
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Dates: during 1940-1949
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Chambermaids at Yale's sister college, Smith, also threatened to strike last week over a story in Tatler, the campus funny magazine, about "Maids We Have Known And Loved"-including "one who was four feet wide ... a high-grade moron," another with "monstrous buck teeth." Smith's maids read, bridled, sent a committee to Warden Laura Woolsey Lord Scales demanding an immediate apology. The faculty suspended the Tatler and its editors wrote the maids a penitent letter. "We hope that [the maids] will accept our apologies and that they will be lenient with a sheer creation, unfortunate...
...above their "out-of-pocket" mine costs, about 15? or 16? (depending on the producer). The U.S. will still release the copper to fabricators at 12?, absorb the difference. Similar offers will doubtless soon be made to other high-cost mines (like Miami Copper's low-grade Castle Dome property in Arizona). But the Government doesn't think that any price in the firmament can pry loose much more than 75,000-100,000 tons of additional U.S. copper...
Heretofore the only commercial source of alumina-the oxide from which the pure metal is produced-has been bauxite, about half of which is now imported from British and Dutch Guiana, since there are only some 13,000,000 tons of known high-grade bauxite deposits in the U.S.-about a three-year supply at the present rate of consumption...
Frontiersman Robert Metcalf first stumbled on the green-stained rocks of the Morenci bed 70 years ago. Its exposed ore was so rich it was "quarried rather than mined." But by 1932, after yielding 1,800,000,000 lb. of copper, the high-grade open veins were played out, the underground low-grade (1.06%) ore too costly to work for a 6? copper market. Morenci became another ghost town...
Today copper is 12? a lb., not 16?. Yet the Morenci ores, though low-grade, will still yield a profit. When production starts, nine 125-ton electric locomotives will haul 75,000 tons of rock from the pit each day, dump 50,000 tons of waste into the canyons, spill the rest into ore bins. Each ton of ore will yield 21 lb. of copper-a daily smelter production of around 260 tons...