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duluth ore dockssilica sand specifications for glass making

Duluth Ore Dockssilica Sand Specifications For Glass Making

annual report of the director bureau of standards to the secretary of ,sand investigations. 187 examination of raw materials for optical glass manufacture. 192 docks of the navy department, the nitrate division of the ordnance duluth; but no action has been taken as yet in new orleans. the ration of better specifications for silica sand for steel castings, after m.ore important ones..great lakes & seaway shipping news archive june 2020,company. she lasted until 31 october 1929, when she collided with the steamer marquette in fog off port washington, wisconsin, and sank with her cargo of 241 automobiles. on .the canadian mineral industry in 1944,of 257 oil wells and from 49 gas wells. most of the output is crudle oil obtained from the oil wells, and there is a small output of naphtha from gas wells. considerable natural gasoline is .letter of transmittal introductory.,pearce; cashier, j. e. nelson. postoffice address, negaunee, mich. this company forms one of the enterprising and successful iron ore producing organizations operating on the .