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Coal in the Union of South Africa - Supply Adequate for Domestic and Export Demand, With Large Undeveloped Reserves
By Sidney H. Haughton
WHEN the white pioneers of the eighteenth and nineteenth centuries advanced from the coastal settlements of southern Africa into the interior of the subcontinent, they found it inhabited, more or less
Jan 1, 1945
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Mechanization in Coal Mining Makes Rapid Progress - Conservation of Coal Among the Desirable Results
By Albert L. Toenges
COAL mining technique progressed slowly until the advent of mechanized mining. The cutting machine was a forward step, but had only a limited effect upon improving the percentage of coal recovery. Pre
Jan 1, 1946
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Lake Superior Iron Ore - R. C. Allen Says Reserves Will Last But One Generation-Low-Grade and Imported Ores a Problem
By AIME AIME
ADDRESSING the Ohio Section at a recent meeting in Columbus, Ohio, R. C. Allen, executive vice-president for Oglebay, Norton & Co., Cleveland, spoke on "The Iron-Ore Industry of the Lake Superior Regi
Jan 1, 1934
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Work of Metals Reserve and the R. F. C.
By AIME AIME
THAT neither the Reconstruction Finance Corp. nor its subsidiary, the Metals Reserve Corp., are in competition with private enterprise was stressed by Charles B. Henderson in an informal talk before t
Jan 1, 1941
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T. A. Rickard - Our New Honorary Member
By Scott Turner
HOSTS of friends will rejoice that T. A. Rickard has been given honorary membership in the Institute. It might well have been done long ago, since, when one reviews distinguished services rendered by
Jan 1, 1935
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Defeated Bill for Licensing Engineers to be Fought Over in Massachusetts
By AIME AIME
AT A meeting of the Boston Local Section of the Institute, on Oct. 3, approval was voted to the work done by its representatives on the Committee opposing the passage of a bill by the, Massachusetts L
Jan 1, 1921
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Signposts of Postwar Engineering Education
By Ovid W. Eshbach
ENGINEERING education has been powerfully affected by the impact of war, just how powerfully can be better understood after considering the postwar problems regarding students, staff, and plant. In t
Jan 1, 1945
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Engineering Schools Enrollment Soars to a Quarter Million
By William B. Plank
A NEW record-a quarter million students in the engineering schools of the United States and Canada-has resulted from the great demand for engineers following World War II. The figures released by the
Jan 1, 1948
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Caving and Drawing at Climax
By F. S., Mc Nicholas
A practical discussion of the theory of A block caving is presented which applies particularly to the physical conditions of the Climax orebody although the conditions are sufficiently characteristic
Jan 1, 1950
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Occurrence, Origin, And Character Of The Surficial Iron-Ores Of Camaguey And Oriente Provinces, Cuba.
By Arthur C. Spencer
(Glen Summit Meeting, June, 1911.) THREE great deposits of iron-ore, in Camaguey and Oriente Provinces, Cuba, are well known to me through careful field-examinations executed in the years 1901 and 19
Mar 1, 1911
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Encroachment of Waters at Santa Fe Springs
By Donald K. Weaver
THERE have been eight different oil zones identified and produced at Santa Fe Springs, of which three or four are in turn divided into two or three parts. These zones are, from top to bottom, the Foix
Jan 1, 1930
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The Conditions Of Accumulation Of Petroleum In The Earth.
By David T. Day
IN 1897 I published a proposed explanation t for the variation in color and specific gravity of Pennsylvania oils. A resume of this subject was also presented at the First International Petroleum Cong
Jun 1, 1910
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Geology Of Harrison Gulch, In Shasta County, California.
By H. E. Kramm
(New York Meeting, February, 1919.) DURING the summer of 1911, I had the opportunity to study in detail the geological conditions of what is known in northern California as " Harrison gulch," in Shas
Jul 1, 1912
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New Process, New Plant - High Grade Iron From Inco's Concentrates
SUDBURY ore processed by International Nickel Co. of Canada Ltd. was recovered for many years as two mill concentrates, one primarily of copper, and the other mixed pentlandite-pyrrhotite, But, Since
Jan 8, 1958
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Nation's Newest Silver Mine Uses Open-Pit Methods
By Russell A. Carter
Seven years of rising silver prices have effectively revived an historic Idaho mining district and given it a new lease on life. Initial production earlier last year from the DeLamar open-pit silver m
Jan 1, 1978
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Laboratory Experiments in Lime-Roasting a Galena Concentrate with Reference to the Savelsberg Process
By W. S. CAYPLESS, H. O. Hofman, E. E. HARRINGTON
I. INTRODUCTION. LIME-ROASTING is a term proposed by Ingalls 1 for the operation of forcing air under pressure through a mixture of galena and lime at the kindling-temperature with the object of oxid
Jan 1, 1907
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Flotation Of Copper Silicate From Silica
By R. W., Ludt
THE use of froth flotation for the separation of minerals has become one of the most important of ore dressing processes. Its particular adaptability to the enrichment of low grade ores has made the p
Jan 1, 1949
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The Moffat Tunnel in Colorado
By AIME AIME
DREAMS do come true at times, although it is evidently better to believe in engineers than to "believe in fairies" if most dreams are to be translated into fact. It was a fine dream that David H. Moff
Jan 1, 1925
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Recent Technical Developments in the Non-metallic Mineral Industries
By Oliver Bowles
TO keep pace with technical progress is an important function of any industry. All branches of mining may learn important lessons by observing progress made in other branches. The non-metallic mineral
Jan 1, 1931
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Mining and Milling Utah Rock Asphalt
By R. C. FLEMING
MINING rock asphalt for use as a paving material is an industry which has grown with the spread of the good roads movement. "Mineral Industry During 1930" reports asphaltic pavements constructed, incl
Jan 1, 1933