Browse TRAIL Inventories

Grinding and classification.

Accidents at metallurgical works in the United States :during the calendar year 1928

Re-treatment of mother lode carbonaceous slime tails

Grinding and classification.

Concentration tests on tailings from the washing plants on the Mesabi Range, Minnesota

Concentration of the rake discharge from a bowl classifier in a washing plant of the Mesabi Range, Minnesoda

Milling methods and costs at the lead concentrator of the Hecla Mining Co., Gem, Idaho

Accidents at metallurgical works in the United States :during the calendar year 1930

Accidents at metallurgical works in the United States :during the calendar year 1931

Accidents at metallurgical works in the United States during the calendar year 1932

Progress report - metallurgical division.

Summary of ore-mining cost data

The flotation of Alabama graphite ores

Lead and zinc mining and milling in the United States :current practices and costs

Concentration of the potash ores of Carlsbad, New Mexico, by ore dressing methods

Progress reports - metallurgical division.

Progress reports - metallurgical division.

Progress reports - metallurgical division.

Beneficiation of spodumene by decrepitation

Ball-mill grindability indexes of some American coals

Progress reports - metallurgical division.

Primary crushing :progress report no. 1

Primary crushing :progress report no. 2

Progress reports - metallurgical division.

Primary crushing :progress report no. 3

Mining and milling methods and costs at the Tennessee-Schuylkill Corporation mine, Chloride, Ariz.

Progress reports :metallurgical division.


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