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Part III – March 1968 - Papers - Silicon-Chromium Electron-Beam-Deposited Resistive Films
By Robert K. Waits
The resistivity, temperature coefficient of resistance, stability at 200°C, and structure of annealed Si-Cr films have been studied as a function of film cowposition. Colorimetric analyses of the fi
Jan 1, 1969
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Production - Domestic - Oil and Gas Activity in Indiana in 1942
By Ralph E. Esarey, George V. Cohee
In Indiana, 349 wells were drilled for oil and gas in the year 1942. Of this number, 125 oil wells and 21 gas wells were successfully completed and 203 were dry holes. Drilling activity declined 37 pe
Jan 1, 1943
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Production - Domestic - Oil and Gas Activity in Indiana in 1942
By George V. Cohee, Ralph E. Esarey
In Indiana, 349 wells were drilled for oil and gas in the year 1942. Of this number, 125 oil wells and 21 gas wells were successfully completed and 203 were dry holes. Drilling activity declined 37 pe
Jan 1, 1943
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Papers - Production - Domestic - Oil and Gas Development in Southwestern Pennsylvania during 1940
By John T. Galey
Production of crude oil for 1940 in southwestern Pennsylvania was off nearly 70,000 bbl., largely as a result of the great number oi abandonments, together with the lack of extension of the Washington
Jan 1, 1941
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Papers - Production - Domestic - Oil and Gas Development in Southwestern Pennsylvania during 1940
By John T. Galey
Production of crude oil for 1940 in southwestern Pennsylvania was off nearly 70,000 bbl., largely as a result of the great number oi abandonments, together with the lack of extension of the Washington
Jan 1, 1941
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Thermal And Electrical Properties Of Ductile Titanium
By W. C. Ellis, E. S. Greiner
METALLIC titanium has been prepared in small quantities since the beginning of the century. Hunter1 reported in 1910 that he obtained a malleable product of 99.9 pct purity by the reduction of the tet
Jan 1, 1948
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Part XII – December 1968 – Papers - The Equilibrium Between Aluminum and Nitrogen in Liquid 18 pct Cr-8pct Ni Stainless Steel
By F. G. Jones, R. D. Pehlke, H. E. Gardner
The solubility of nitrogen in liquid Fe-18 pct Cr-8 pct Ni-0. 7 to 2.3 pct A1 alloys has been measured up to the solubility limit for the formation of aluminum nitride in the temperature range 1600° t
Jan 1, 1969
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Salt Lake Paper - A Comparison of the Huntington-Heberlein and Dwight-Lloyd Processes (with Discussion)
By W. W. Norton
The gradually increasing proportion of sulphide ores which lead smelters of to-day are called upon to handle has caused the roasting problem to become one of ever greater importance. Mines have increa
Jan 1, 1915
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Papres - Aviation - Geological Interpretation of Aerial Photographs
The economics of aerial survey and the technical processes by the aid of which vertical and oblique aerial photographs are turned into line maps showing the most profuse topographical detail such as c
Jan 1, 1937
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Colorado Paper - Concentration before Amalgamation for Low-Grade Partially Decomposed Silver-Ores. With Notes on the Geology of the Flint Creek Mining District.
By Charles W. Goodale, William A. Akers
The treatment of silver-ores of too low a grade to justify either smelting or preliminary roasting, and yet not " free" enough to permit of raw amalgamation, has ever been a serious problem. As bearin
Jan 1, 1890
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Segregation in Gold Bullion
By James Hance
INTRODUCTION SEVERAL years ago the writer was connected with the Mint and Assay Service of the Federal Government as Assistant Assayer at the-Salt Lake Assay Office. At that time cyanide bars formed
Jan 2, 1916
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Genetic Groups Of Hypogene Deposits And Their Occurrence In The Western United States
By Joseph T. Singwald
INTRODUCTION THE purpose of this chapter is to present the diagnostic features (geologic, mineralogic, chemical, and physical) of the principal types of hypogene ore deposits recognized in current
Jan 1, 1933
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The Constitution Of The Tin Bronzes
By Samuel Hoyt
THE writer has long been interested in seeking an explanation of the upper heat effect in the copper-tin alloys over the a + ß range, first described in 1913. These notes are offered, not at all as th
Jan 12, 1918
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Autogenous Grinding in Laboratory Tumbling Mills
By Johann F. Kerl
Autogenous batch grinding tests were performed in laboratory-scale tumbling mills with magnetite, limestone, and sandstone pebbles. The influence of pebble size, feed size, mill speed and loading, and
Jan 1, 1972
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Minerals Beneficiation - Mechanisms Involved In Cyanide Depression of Pyrite
By D. A. Elgillani, M. C. Fuerstenau
In this paper, oxidation potentials measured in the presence of various concentrations of cyanide, ferro-cyanide, and ferricyanide and ethyl xanthate at various values of pH are related to flotation r
Jan 1, 1969
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48. The Eureka Mining District, Nevada
By T. B. Nolan, R. N. Hunt
In terms of present metal prices, analysis of extant records of the Eureka district indicate past production of the magnitude of $200,000,000 in recovered silver, lead, and gold. Production to date ha
Jan 1, 1968
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The Amalgamation of Gold-Ores
By Thomas T. Read
The purpose of the following research, as originally planned, was to investigate the influence of temperature upon the plate¬amalgamation process. In order to consider the amalgamation process intel
May 1, 1906
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Laws Of Rock Behavior In The Earth's Crust
By Neville J. Price
In order that the reader may not be misled, I feel it necessary to comment upon the title of this paper. "Laws of Rock Behavior," one may take as being part of the all-embracing "Law of Nature" and th
Jan 1, 1970
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The White Knob Copper Deposits, Mackay, Idaho
By J. F. KENP
THE White Knob copper-deposits are situated about three miles south of Mackay, on the Salmon River .branch of the Oregon Short Line Railroad, in Custer county, Idaho. An outline-map of this district i
Mar 1, 1907
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Institute of Metals Active
By AIME AIME
THE Tuesday afternoon session", H. A. Bedworth chairman and T. S. Fuller, vice-chairman, was opened with D. J. McAdam, Jr.'s paper entitled "The Influence of Cyclic Stress on Corrosion." This pap
Jan 1, 1930