Word: grading
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Dates: during 1930-1939
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...MacNaughton's achievement was to mine at a profit 3,000,000 tons annually of low-grade ore, averaging less than 1% copper, from the deepest mine in North America, the famed Conglomerate shaft which has passed a vertical depth of 5,000 ft. Such lean ore had never before been mined so far down. In open-pit mining, which means simply shoveling away a hill of exposed ore (as at Bingham, Utah), lodes down to 8/10 of 1% can be handled profitably. Deep-vein mining entails the cost of tunneling, drilling, blasting, hoisting, ventilating. Mining engineers consider...
...were merged. Fifty years later C. & H. had yielded total dividends of $152,250,000-a return of 100 for 1 to the Boston stockholders on their original investment. But in 1907, when copper enjoyed one of its booms, the Michigan Copper Country was already on the down grade. Again during the War all the mines started up full blast. In 1929, as a last triumphant gasp, C. & H. made 90,000,000 lb. of copper. The rest is drabness. The 100,000,000 tons of ore remaining among the lava flows probably average no more than 1% copper...
Aside from these two the squad sheet includes the name of no one who has ranked above Freshman or Jayvee grade in previous years. There are the versatile Tommy Bilodeau and the promising Dick Walsh, the leading hurlers from the ex-Freshman unit. Then Frank Wood, best of the Jayvees last season, together with his former teammates, Martin, Victor, George Tittmann, and Johnny Campana have all swung into Varsity possibilities...
...necessary to meet the final examinations and the recently-adopted comprehensive examinations are left unmentioned in the report. Not too much can be expected in the way of reform if the remark, made by a professor in the Law School recently that the "dawn of intelligence commences with the grade of 67" is typical of the attitude of the faculty...
Obviously disappointed, he approached the venerable professor, laid the paper on the desk, and respectfully asked an explanation of the wretched grade, hinting that an 'A-plus' would have been much more satisfactory...