File:E-MJ - engineering and mining journal (1920) (14578948548).jpg

Identifier: emjengineeringmi110newy (find matches)
Title: E/MJ : engineering and mining journal
Year: 1920 (1920s)
Authors:
Subjects: Mineral industries Engineering
Publisher: New York : McGraw-Hill
Contributing Library: Engineering - University of Toronto
Digitizing Sponsor: University of Toronto

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der what conditionsthey must work, and preparation to mine and exportbauxite are going forward rapidly. Prospecting has continued, in a small way, for quick-silver ores, float of which has been found in a number ofplaces near the Marowyne River, and it is reported thatquicksilver has been found in place on one concession.The government, in coimection with a Dutch company,continued to explore large areas of ground said to con-tain high-grade iron-ore deposits. Spectrescopic Analysis of GoldNine standard samples of gold alloyed with silver,copper, and iron have been examined spectroscopicallyto establish a method for making quantitative analysesof mint gold from spark spectra, according to theBureau of Standards, Washington. As a result of thiswork, it appears that the common impurities of goldcan be estimated in the range of 0.0001 per cent to1 or more per cent, with a probable error of not greaterthan a few hundredths of 1 per cent. December 25, 1920 Engineebing and Mining Journ. 121S
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THE PLANE SURVEYOR IN MEXICO 1216 Engineering and Mining Journal Vol. 110, No. 26 Metallurgists of NoteE. A. Cappelen Smith THE Chicago Worlds Fair in 1893 was more of aiaid to progress in American metallurgy than hasbeen generally thought. To see that exposition,E. A. Cappelen Smith came to this country from Nor-way, where he was born, at Trondhjem, twenty yearsbefore. Then, being of-fered a job with Armour& Co. at $40 per month,he decided to stay awhile,and is still with us.When Mr. CappelenSmith accepted the postof assistant chemist inthe stockyards the appli-cation of chemistry to themeat-packing industrywas comparatively un-known. Practically nobyproducts were manu-factured, and he was oneof the first to show thata lot of things besidesmeat could be obtainedfrom livestock. He stillbelieves that food chem-istry offers even moreopportunities for profit-able research than doesmetallurgy. A year anda half later, a positionwith the old Blue IslandWorks of the ChicagoCopper Refinin

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