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Leaching of Caved Areas in the Ohio Copper Mine, Bingham, Utah
By G. L. Oldright
DURING 1919, in the face of high cost for labor and supplies and a rapidly dropping copper market, the management of the Ohio Copper Co. of Utah was left with an orebody that had been shown to be very
Jan 10, 1923
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Mine Taxation in Ontario
By Hon. Charles McCrea
MINING taxation is a subject which bears definitely upon-the welfare of the mining indus-try. Every government must have a revenue but that revenue should be raised in such a way as to hamper as littl
Jan 10, 1923
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Review of the Month (115dfdd8-36ca-476a-aa74-22e1dd40a5d9)
EUROPE continued to be unsettled, financially, commercially and socially. October opened with Germany in a state of turmoil following the Government's cessation of passive resistance to the Frenc
Jan 10, 1923
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Principles of Copper Deposits
By F. E. Calkins
THE following presentation of the more important accumulated facts and probabilities involved in copper ore deposition is based on my experience in examination work and study of the extensive litera
Jan 10, 1923
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Review of the Month (ebfec270-5cc4-4472-ae54-a2516aee21fb)
AN earthquake caused an upheaval in Japan, started fires which destroyed large parts of Tokio, Yokohama and Hakone, and with tidal waves and other consequences extinguished some 68,000 lives and much
Jan 10, 1923
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Federal Coal Commissions Final Report on Bituminous Coal
DURING September, the Coal Commission pre- pared for issue a series of 18 reports on varied aspects of- the bituminous coal industry; the final report, dated Sept. 22, sums up the facts and offers
Jan 10, 1923
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New Oroya Smelter of the Cerro de Pasco Copper Corporation
By Edward Judd
THE old Cerro de Pasco smelter at La Fundicion, near Tinahuarea, 9 miles. from the Cerro de Pasco. mines and at an elevation of 14,300 ft., has now been replaced by a thoroughly modern smelting plant
Jan 10, 1923
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Horace Vaughn Winchell
H ORACE VAUGHN WINCHELL was born at Galesburg, Michigan, Nov. 1, 1865, and died at Los Angeles, California, on July 28th of this year, at the age of fifty-seven. Mr. Winchell was one of the conspicuo
Jan 9, 1923
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Flotation of Oxidized Ores
By Albert Hahn
ABOUT three years ago John Hays Hammond took over the control of the Eureka Metallurgical Co., at Salt Lake City, Utah. Funds were advanced for investigating the process invented by R. V. Smith, for c
Jan 9, 1923
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The Coal and Oil Resources of Sakhaline Island
By Chester Purington
PROBABLY no battleship of any great power save Japan could long remain in. the Pacific Ocean tinder present conditions, were it to depend for fuel supply on the hitherto developed coal or oil resour
Jan 9, 1923
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Cause and Growth of Unionism Among the Coal Miners
By Thos Stroup
RECENT contributions to the literature relating to the problems of coal mine management have discussed the pros, and cons of unionism among the miners as bearing upon the immediate problems of the ind
Jan 9, 1923
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The 128th Meeting of the Institute
The 128th meeting of the American Institute of Mining and Metallurgical Engineers constituted a two weeks trip through the Great Northland of Ontario and Quebec and was a most memorable occasion. The
Jan 9, 1923
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Notes on the History of Porcupine
By Louis Huntoon
HISTORY of the Porcupine area has been pub-lished in detail by the Ontario Bureau. of Mines in several issues of its annual reports. An. interesting volume could be written on: this topic; especially
Jan 8, 1923
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Notes on the Mining Industry of Canada
By Edward Judd
CANADA'S mining industry is rapidly recovering from the depression through which it passed in 1921. Its total output of $183,029,600 in 1922 was 6.4 per cent. greater than that of 1921, and was e
Jan 8, 1923
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The Kirkland Lake Gold Area, Ontario
By Percy Hopkins
KIRKLAND LAKE, the second most important gold area in Ontario, is situated in the north¬eastern part of the Province, 392 miles north of Toronto by railway. It is reached by a five-mile macadam road f
Jan 8, 1923
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Licensing of Engineers Declared Unconstitutional-in Pennsylvania
JUDGE Samuel E. Schull, in the Court of Quarter Sessions of Monroe County, Pa., handed down a decision on July 2, declaring the Pennsylvania law for the Licensing of Professional Engineers and Land
Jan 8, 1923
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An Engineering Statement of Economic Principles
By W. R. Ingalls
I WAS led some time ago to draft a statement of economic principles immediately affecting our national welfare from the standpoint of the engineer. It was the intention to offer this to the American E
Jan 8, 1923
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Review of the Month (bab4dec2-cb67-422d-b16f-5d4a5a70c615)
THE great event in American affairs was the sudden death of President Harding, on Aug. 2, in San Francisco. A few hours later Vice-Presi¬ dent Coolidge took the oath of office while in his father&a
Jan 8, 1923
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Robert Woolston Hunt
ROBERT WOOLSTON HUNT, who joined the Institute in 1874, served twice as its President, was made Honorary member in 1919, in whose honor the Hunt prize and medal were established, and who, within
Jan 8, 1923
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Developments in the Production of Arsenic at Anaconda
By E. A. Barnard
ARSENIC is a very old substance. The ancients speak of it in their writings, and its use has developed very little until recent years. The ancients used it in making pigments, in medicine, and for poi
Jan 8, 1923