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4. Triassic Magnetite and Diabase at Cornwall, Pennsylvania
By Davis M. Lapham
Ore bodies at Cornwall, Pennsylvania, have been mined since 1742 principally for iron from magnetite, but also for copper (in chalcopyrite), silver (in chalcopyrite), gold (in chalcopyrite), cobalt (i
Jan 1, 1968
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The Coal Industry ? Abnormal Conditions Continue as Producers Turn Out 685 Millions Tons - Postwar Planning Not Neglected
By A. W. Gauger
DESPITE many handicaps and in the face of many discouragements anthracite and bituminous coal producers continue to supply the needs of the nation now vastly multiplied by the demands of the greatest
Jan 1, 1945
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Institute of Metals - Progress in Nonferrous Metals and Alloys During the Past Few Years
By Earle E. Schumacher, Alexander G. Souden
IN the field of physical metallurgy it is becoming increasingly difficult to keep abreast of the recent develop¬ments since the diversity of investigations is so great and the literature so voluminous
Jan 1, 1938
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Longhole Drilling Vital In Proving Up Molybdenum Corp.'s Questa Orebody
By Jack F. B. Silman
Proving up any large, open pit ore deposit by normal exploration drilling under the best of conditions is a noteworthy accomplishment. But, when adverse conditions preclude standard drilling methods,
Jan 5, 1965
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Fifteen Years Of Consistent Longwall Production At Bethlehem's Cambria Division, Ebensburg, Pennsylvania
By Edmund J. Korber, Donald E. Raab, Frank A. Burns
During the early 1960s, the advent of self- advancing longwall roof supports triggered serious consideration by Bethlehem management to introduce the technique of longwall mining at one of our central
Jan 1, 1981
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Part VI – June 1968 – Communications - Computer Aid in Indexing Hcp Field-Ion Micrographs
By M. H. Richman, W. D. Sproul
THE indexing of a field-ion micrograph is in many cases similar to the indexing of the poles of a stereo-graphic projection.* If one has a standard projection as a guide, the task of indexing is re
Jan 1, 1969
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Papers - - Produciton - Foreign - Petroleum Development in France and French Possessions
By H. De Cizancourt
The Pechelbronn (Alsace) field is the only important French producing field. During 1934, development was carried on as in previous years. The total output of this field reached 553,575 bbl. in 1934,
Jan 1, 1935
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Annual Dinner-Dance Huge Success
By AIME AIME
ALMOST as many attended the annual dinner this year as last, when the presence of Mr. Hoover was such an attraction that almost two-thirds more than had ever attended before were present. Only by putt
Jan 1, 1929
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Official Institute Reports For The Year Ending 1919 ? Report Of The President
TO THE BOARD OF DIRECTORS, AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS: Gentlemen.-I have the honor to present the following report of the President for the year 1919. In order that this
Jan 2, 1920
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Official Institute Reports For The Year 1923 (624a93bd-46a3-40c5-b092-5cc85a9c73a4)
TO THE BOARD OF DIRECTORS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS Gentlemen:-The following report covers briefly some of the more important activities of the Institute duri
Jan 2, 1924
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Fluid Bed Roasting Of Zinc Concentrate And Production Of Sulphuric Acid And Phosphate Fertilizer At Canadian Electrolytic Zinc, Ltd . Valleyfield, Quebec
By K. H. Heino
Two 200 T/da Lurgi Turbulent Layer fluid-bed roasters have been in operation at Canadian Electrolytic Zinc Limited since 1966. Zinc concentrate containing 52-54% Zn, 9-11% Fe,31-33% S is treated to pr
Jan 1, 1970
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The Low-volatile Coal Field of Southern West Virginia
By Howard Eavenson
THE low-volatile, or smokeless, coal field of southern West Virginia is in Fayette, Raleigh, Wyoming, Mercer, Summers and McDowell counties, in the extreme southern portion of the state, and extends i
Jan 1, 1931
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Radium
By Moore, Richard B
PROBABLY no other metal excites as much interest, among both scientific men and the general public, as radium. This is due partly to the high cost of radium salts and partly to the peculiar properties
Jan 8, 1918
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Comparative Friction Test of Two Types of Coal-Mine Cars - 1875
By Edwin M. Chance
EDWIN M. CHANCE, Wilkes-Barre, Pa. (communication to the Secretary*).-I have read with great interest Mr.. Liebermann's paper reporting dynamometer tests of mine cars and wish to express my appre
Jan 10, 1916
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Papers - Effects of Artificial Support in Longwall Mining as Determined by Barodynamic Experiment (T.P. 1020, with discussion)
By R. V. Taborelli, P. B. Bucky
This investigation was carried on by means of models and the application of the principles of similitude to determine the effects of props, props and cribs and sand filling in longwall mining. The geo
Jan 1, 1940
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Papers - Effects of Artificial Support in Longwall Mining as Determined by Barodynamic Experiment (T.P. 1020, with discussion)
By P. B. Bucky, R. V. Taborelli
This investigation was carried on by means of models and the application of the principles of similitude to determine the effects of props, props and cribs and sand filling in longwall mining. The geo
Jan 1, 1940
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Oil and Gas Prospecting in Australia and New Zealand
By M. W. BERNEWITZ
DURING my recent extended visit to Australia and New Zealand, these notes on oil and gas prospecting in that part of the world were compiled from recent reports-press and government, from conversation
Jan 1, 1934
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Operations Report No. 3 – Combatting Excessive Heat Underground at Bralorne
By W. E. Field
In the Coast Mountains approximately 110 miles north of Vancouver, the gold mine of Bralorne- Pioneer Mines Ltd. lies at an elevation of 3500 ft. The deepest or 41 level in the mine is at an elevation
Jan 12, 1963
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Papers - - Produciton - Foreign - Development of Oil and Gas in Poland during 1934
By Charles Bohdanowicz
As in preceding years, the most intensive drilling activity during 1934 took place in the old fields of the western part of the Polish Carpathian petroleum province (district of Jaslo). The number of
Jan 1, 1935
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Papers - - Produciton - Domestic- Oil and Gas Development in Illinois in 1934
By Alfred H. Bell
Illinois produced 5 per cent more crude oil in 1934 than in 1933, because there was less curtailment, and. the value of the year's production at the wells was 35 per cent more than that of the pr
Jan 1, 1935