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Addendum to Fine Grinding Investigations at Lake Shore Mines
By The Staff
This is in direct contradiction to the generally accepted philosophy of tube-mill grinding, which is based upon an enormous amount of experiment carried on in different parts of the world. Personally,
Jan 1, 1942
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Assay Office Dust Control
By G. Reuben Yourt
THIS paper is chiefly a description of the improvements in dust control chat have been brought about in the assay office grinding room at Wright-Hargreaves. The fume exhaust systems are briefly includ
Jan 1, 1941
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Underground Crusher Dust Control at Lake Shore Mine
By O. E. Andrew
THE object of this paper is to present a brief summary of the dust control system in use on the 3,825-foot level at the jaw crusher station, Lake Shore mine. During the years 1936 and 1937, dust surv
Jan 1, 1941
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Development of the Athabaska Oil Sands
By Max W. Ball
THE world's largest known oil deposit lies in northern Alberta. In fact, according to government estimates, the famous so-called 'tar sands' of the Athabaska region contain several time
Jan 1, 1941
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The Treatment of Refractory Ores at the Hard Rock Gold Mine
By C. H. Madsen
THE Hard Rock gold mine is in the Little Long Lac mining area, Thunder Bay district, northwestern Ontario. It is four miles by road from the town of Geraldton, which is on the Canadian National railwa
Jan 1, 1941
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San Antonio No. 3 Winze
By R. J. R. Schaller
NO. 3 winze, the sixth shaft to be sunk on the San Antonio property, is practically a duplicate of No. 3 shaft, which was the main shaft prior to the installation of the larger hoisting equipment in 1
Jan 1, 1941
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Hardening Drill Steel with the Radiation-Type Thermocouple
By Charles G. Kemsley
IN January, 1939, Dome Mines, Limited, purchased a few bars of an alloy drill-steel for the purpose of testing its fatigue resisting qualities as compared with those of a straight carbon-steel then in
Jan 1, 1941
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Detection and Prevention of Early Plumbism
By K. Raht
LEAD poisoning is perhaps the oldest and, until recent years, the most misunderstood of all industrial diseases. Hippocrates appears to have recognized a relationship in the colic experienced by a pat
Jan 1, 1941
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Shaft-Sinking Practice and Equipment at the Hallnor Mine
By R. J. A. Fricker
IT is the purpose of this essay to give a reasonably complete description of shaft sinking under a rock pentice in a small Northern Ontario gold property. Hallnor is in many ways an exceptional mine
Jan 1, 1941
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The Exploration and Development of Calumet Mine, Quebec
By Paul Armstrong
THE first discovery of lead and zinc ore on Calumet island was made in 1893 by John Lawn, who then staked a portion of the property now owned by Calumet Mines, Limited. His discovery was developed by
Jan 1, 1941
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Tin at the Sullivan Concentrator
By H. R. Banks
SHORTLY after the commencement of operations at the Sullivan concentrator, the use of a pilot table was instituted in order to present a visual control of various products by showing the amount of gal
Jan 1, 1941
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The Magdalen Islands
By F. J. Alcock
THE Magdalen islands have recently been attracting attention as a possible source of manganese. As early as 1880 small masses of manganese oxides were known to occur in the soil and at least one attem
Jan 1, 1941
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Backfilling at the Sullivan Mine
By C. D. M. Chisholm
IN discussing stope filling, or backfilling, at the Sullivan mine, at Kimberley, B.C., a brief description of the problem will first be presented. The Sullivan orebody is a replacement in quartzite, w
Jan 1, 1941
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South Main Shaft at Flin Fion
By J. P. Caulfield
THE Hudson Bay Mining and Smelting Company's underground mine at Flin Flon, Manitoba, has in the past been serviced by two working shafts-the North Main shaft, and the No. 3 shaft. The North Ma
Jan 1, 1941
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Selection of Fans for Mine Ventilation
By Wm. D. Jr. Sheldon
THIS paper presents practical data to aid in the selection of a mine ventilating fan, and outlines considerations to be made to ensure satisfactory operation and optimum efficiency of the fan. Much
Jan 1, 1941
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Geology and Structure as Related to Mining
By P. M. Hedley
GOLD mining in Nova Scotia, as in any other gold district, has its own peculiar problems. Being in close proximity to excellent roads and to railways, and being blessed with good labour, the majority
Jan 1, 1941
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Fine Grinding Investigations at Lake Shore Mines (10a67995-9fcf-4997-9b1a-13fa03a556a1)
By The Staff
WE were requested to make a digest of our original grinding report, Fine Grinding Investigations at Lake Shore Mines. This digest is much easier to read than the original report, but it lacks the expe
Jan 1, 1941
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Narrow Vein Stoping at No. 2 Mine, Central Patricia Gold Mines, Limited
By J. R. MacDonald
MINING literature contains very few descriptions of operations producing as little as 25 to 30 tons of ore per day. The purpose of this paper is to discuss the gradual development of a mining method f
Jan 1, 1941
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The Ore Deposits of Nickel Plate Mountain, Hedley, B.C.
By Paul Billingsley
NICKEL Plate mountain coincides closely with that portion of the Hedley mining district which is of economic interest. From it has come almost the entire past production, and the active mines of the p
Jan 1, 1941
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Anglo-American Responsibilities
By Max W. Ball
YOU have been kind enough to ask me to speak to you on "The War and Anglo-American Relations." A speaker always takes the liberty of putting his own interpretation on the scope of his subject. I am go
Jan 1, 1941