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Virginia Beach Paper - Discussion of Mr. Stetefeldt's paper on the inaccuracy of the commercial assay for silver (see p. 530)
Prof. H. O. Hofman, Massachusetts Institute of Technology, Boston, Mass. (communication to the Secretary): When Mr. Stetefeldt quotes me as saying that " silver-assays are uniformly made by scorificat
Jan 1, 1895
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Principles And Problems Of Oil Prospecting In The Gulf Coast Country
By W. G. Matteson
The Gulf Coastal plain of the southern United States is that area bordering for a large part, the Gulf of Mexico and extending inland and northward to the main interior highland region. It is more or
Jan 2, 1918
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Waelz Treating Of Complex Zinc-Lead Ores, Kiln Products Limited, Berg Aukas, South West Africa.
By Harry E. Cross
Kiln Products commissioned a Waelz kiln 4 metres in diameter by 75 metres long, in South West Africa in March, 1969, to recover nine in a form suitable for the production of electrolytic zinc. The raw
Jan 1, 1970
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More Engineering Training for Leadership
By Gilbert E. Doan
IN a technical civilization, that is. one whose major difference from past civilizations is its enormous development of technology, in transportation, communication, labor saving, centralized control,
Jan 1, 1939
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Mill Operations at United Eastern During 1917 and 1918 - Discussion (4496413d-e276-4f56-ab04-3fab4a92dffc)
G. M. TAYLOR,* Colorado Springs, Colo.-The ore treated at the United Eastern is primarily a gold one and is cyanided-the counter-current decantation method being employed. One of our employees visited
Jan 12, 1919
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Superorganizing Professional Engineers
By A. B. Parsons
AN often repeated criticism of the profession of engineering is that it is as a whole it lacks solidarity. organization, co-ordination, and leadership. Significantly, the critic, are all engineers. Ot
Jan 1, 1943
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Metallurgical Practice In The Porcupine District
Discussion of the paper Of NOEL CUNNINGHAM, presented at the New York meeting, February, 1915, and printed in Bulletin No. 99, March, 1915, pp. 601 to 608. C. H. POIRIER, New York, N. Y. (communicati
Jan 5, 1915
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The Manufacture and Characteristics of Wrought-Iron
By James P. Roe
I. INTRODUCTION. THOSE who deem the subject of this paper an old and super¬seded one may recall with advantage the words of the great proverb-maker, bidding us to seek the new in the ashes of the old
Jul 1, 1905
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Investigation Of Sources Of Potash In Texas
By William Phillips
THE possible sources of potash salts in the United States have been considered from many points of view during the last several years, but it is only within the last two or three months that the situa
Jan 2, 1915
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Lake Champlain (Plattsburgh) Paper - A Geological Map of the State of New York
By James Hall
A geological map of a State involves very much, and its pre sentation to the public incurs grave responsibilities. It has been for a long time my earnest desire to bring out and place before the pub l
Jan 1, 1893
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Test Tube To 10,000-Ton Plants - Reminiscence On Experience At Ajo And Inspiration
By L. D. Rickets
The principles on which an art is founded are usually few and necessarily basic in nature, but he who wishes to achieve the power to select his aides and give success to important undertakings that ma
Jan 1, 1932
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Washington D.C. Paper - Iron and Steel considered as Structural Materials – A Discussion, Papers and Remarks by (b8768377-a37a-401a-9ec3-559f2603a250)
By Percival Roberts
I DESIRE to present this evening a few notes from the standpoint of a manufacturer upon the subject of tests of iron for structural purposes; not that I have any new facts to which to call your attent
Jan 1, 1882
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Forthcoming Meetings Of Societies (e5136cf7-09a9-4aa0-8553-7bbb66194f63)
Organization Place Date 1919 American Railway Engineering Association Chicago, 111. Mar. 18-20 Society of Industrial Engineers New York, N. Y. Mar. 18-21 American Electrochemical Society New York
Jan 3, 1919
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Washington Paper - Specifications for Cast-iron Coated Water-Pipe
By Thomas W. Yardley
In many years' experience as a maker and purchaser of cast-iron coated pipe, I have never met with any standard form of specifications for such. Each water-works company, employing a hydraulic en
Jan 1, 1890
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Forthcoming Meetings (38e33bd2-5833-4631-83a8-96cdc0c96857)
Organization Place Date 1919 American Electrochemical Society New York, N. Y. Apr. 3-5 American Chemical Society Buffalo, N. Y. Apr. 8-11 National Foreign Trade Council : Chicago, Ill. Apr. 2
Jan 4, 1919
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The Alundum Extraction-Thimble Used In The Determination Of Copper.
By L. W. Bahney
(Cleveland Meeting, October, 1912.) THE photograph, Fig. 1, shows the apparatus a little less than half size, consisting of a filtering-flask fitted with rubber stopper, through which passes a bent g
Nov 1, 1912
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Lake George and Lake Champlain Paper - Note upon a Peculiar Variety of Anthracite
By Eckley B. Coxe
I wish to call the attention of the Institute to a peculiar variety of anthracite which occurs in the Buck Mountain vein at our collieries at Drifton, and in the same and other veins in different loca
Jan 1, 1879
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Recent. Negotiations of Russo- Asiatic With Soviet Government
AT A MEETING of the Shareholders of the Russo-Asiatic Cons. Ltd., in London, Oct. 23, 1922, LESLIE URQUHART, chairman of the com- pany made the following statement:* I come now to our recent negot
Jan 12, 1922
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A Magnetic Survey of the Ivry Ilmenite Deposit
By David Keys
THE object of this investigation was to determine with a vertical magnetic variometer the extent of the titaniferous ore deposit that occurs not far from Ivry in Terrebonne County, Quebec, about 70 mi
Jan 1, 1936
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20. The Geology and Ore Deposits of the Tri-State District of Missouri, Kansas, and Oklahoma
By Paul R. Dingess, Edward H. Hare, Douglas C. Brockie
Mining in the Tri-State district of Missouri, Kansas, and Oklahoma has been nearly continuous from about 1848 until the present day, although the major activity was from about 1880 to 1955. The distri
Jan 1, 1968