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Industrial Minerals ? New Products, New Processes, New Uses for the Nonmetallics
By Oliver Bowles
PRICES of quartz sold in the United States in 1938 ranged from $1.15 to $36,000 a ton. This startling variation was due simply to the differences between glass sand and rock - crystal, materials that
Jan 1, 1939
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Education - Participants Evaluate Summer Industrial Programs For Students - The Summer Employment Program For Students At The Kennecott Research Center
By H. R. Spedden
As part of its broad program of educational assistance-including grants, fellowships, and scholarships -Kennecott Copper Corp. offers summer employment opportunities for college students at each of it
Jan 6, 1967
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U. S. Bureau Of Mines Investigations And Research On Bumps
By Edward Thomas
THE late George S. Rice was active in the investigation of bumps, particularly in the last ten years of his career as chief mining engineer of the U. S. Bureau of Mines. Since most of his investigatio
Jan 8, 1958
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Institute of Metals Division - An Evaluation of Procedures in Quantitative Metallography for Volume-Fraction Analysis
By J. E. Hilliard, J. W. Cahn
calculation has been made of the standard deviations to be expected in the measurement of volume fractions by areal analysis, lineal analysis and four point-counting Procedures. The effect of experi
Jan 1, 1962
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A Method Of Rolling Steel Or Iron Eye-Bars
By Charles Macdonald
WROUGHT-IRON eye-bars for bridges and roofs, designed upon what is known as the pin connection system, have been successfully manufactured in this country for some years. The most approved methods emp
Jan 1, 1879
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Baltimore Paper - A Method of Rolling Steel or Iron Eye-bars.
By Charles Macdonald
Wrought-iron eye-bars for bridges and roofs, designed upon what is known as the pin connection system, have been successfully manufactured in this country for some years. The most approved methods emp
Jan 1, 1879
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Water Flooding in Northeastern Oklahoma
By Wllliam D. Davis
C OMMERCIAL production of oil in northeastern Oklahoma began in 1897 and in the next two decades this area became one of the greatest oil districts of the time. Its importance is now secondary, but th
Jan 1, 1940
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Mineral Industry Education - Colleges Set a New Record in Activity and Enrolment
By W. B. Plank
RETURNS already received from a current survey of the enrolment of students in the mineral technology schools indicate a degree of activity and prosperity in those schools never before equalled. The r
Jan 1, 1937
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Huge Reserves, Poor Technique Characterize Soviet Oil Industry
By Linn M. Farish
SOVIET RUSSIA reserves must be stupendous. In 1937 I. M. Goubkin placed the reserves of all categories it approximately 48 billion barren which was about twenty billion horn Is in excel:, of all the o
Jan 1, 1940
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Los Angeles Ideal for Regional Meeting
By AIME AIME
NO MORE SUITABLE time and place than LOS Angeles on Thursday and Friday, July 28 and 29, could have been chosen for the Western Regional Meeting of the~1nstitutk. After attending two clays of technica
Jan 1, 1932
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Anaconda's Berkeley Pit A Four-Part Report On Open Pit Mining Operations - Berkeley Pit History And Geology
By Charles C. Goddard
Since discovery of silver-gold lode deposits in 1864, the Butte district has produced more than $2.25 billion worth of copper, zinc, manganese, silver, and gold, an unprecedented value in the mining w
Jan 3, 1959
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Institute of Metals Division - An Analysis of Powder Compaction Phenomena
By R. W. Heckel
The conzpaction of metal powders is analyzed through density-pressure curves as a three-stage process — die filling, individual particle motion, gross compact deformatim. The densification occurring
Jan 1, 1962
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U. S. Turns to South America for Many Critical Minerals
By AIME AIME
MICA is perhaps our No. 1. strategic mineral problem because of its large requirements in a variety of equipment for use in the military services, and because the principal source of this material has
Jan 1, 1942
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What is the Matter with Modern Galvanizing?
By J. A. Singmaster
A REPORT that it did not pay to use present-day galvanized iron on account of the short life of the material, accompanied by proofs of the state-ment in the form of a tabulated history of the first co
Jan 10, 1922
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Beneficiation of Iron Ores from the Blast-furnace Viewpoint
By Ralph H. Sweetser
BENEFICIATION of iron ores from the blast-furnace point of view means more than the usual enrichment of the iron contents by the removal of a large part of the clay, carbonic acid gas, silica, or mois
Jan 1, 1930
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Some Suggestions Regarding The Determination Of The Properties Of Steel (b780d9cc-fc97-46b3-a326-5dbe44e19440)
By A. N. Mitinsky
Discussion of the paper of A. N. MITINSKY, presented at the San Francisco meeting, September, 1915, and printed in Bulletin No. 104, August, 1915, pp. 1697 to 1705. LAWFORD H. FRY, Burnham, Pa. (comm
Jan 12, 1915
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Papers - Production - Introduction
By James Terry Duce
The symposium on production for the year 1940 contains few papers on the foreign situation. It is probable that the foreign part of next year's symposium will be even shorter. This is due to rigi
Jan 1, 1941
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Papers - Temperature-gradient Studies on Tempering Reactions of Quenched High carbou Steels (T. P. 923)
By B. S. Norris, Charles R. Austin
The stresses which initiate deformation processes in metals are fundamentally important in the study of the mechanical properties of metals. A point of inflection in the load-elongation curves obtaine
Jan 1, 1938
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Papers - Temperature-gradient Studies on Tempering Reactions of Quenched High carbou Steels (T. P. 923)
By B. S. Norris, Charles R. Austin
The stresses which initiate deformation processes in metals are fundamentally important in the study of the mechanical properties of metals. A point of inflection in the load-elongation curves obtaine
Jan 1, 1938
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Magnetometric Survey of a Kimberlite Pipe in Southwestern Transvaal
By Krahmann, Rudolf
THE following is an account of a survey undertaken to test the possibility of outlining a kimberlite pipe by magnetouietric methods. Kimberlite is a basic igneous rock closely related to melilite-basa
Jan 1, 1935