Browse TRAIL Inventories

Northgate fluorspar, Jackson County, Colo.

Concentration of manganese ores from Lincoln County, Nev.

Virginia marl deposits, New Kent County, Va.

Beneficiation of western manganese ores

Industrial uses of limestone and dolomite

Recent engineering developments in Switzerland on gas turbines and steam generators

Diamond-drill-core storage at Mount Weather Testing Adit

What is coal?

Natural-gasoline and cycle plants in the United States, January 1, 1946

Geophysical abstracts 126July-September 1946

Diamond-drilling blast holes, eastern magnetite "Mine B"

Catron and Sierra Counties tin deposits, N. Mex.

Diamond drilling of potash reserves in Eddy County, N.Mex

Gallatin corundum deposit, Gallatin County, Mont.

Winskell-Andrews-Lyne zinc deposits, Lafayette County, Wis.

Bush-Hutchins ilmenite, Roanoke County, Va.

A skull breaker in a limestone quarry

Making iron powder in the tunnel kiln

Exploration, development, mining, and milling of a unique tungsten ore body at the Yellow Pine Mine, Stibnite, Idaho

Design and operation of electrical mechanisms in underground pumping plants.

Methods of producing ultra-clean coal for electrode carbon in Germany

Safe equipment, guards, and practices, Lake Superior district iron-ore mines

Breaking coal with airdox

Methods used in evaluating adsorbent clays

Effect of hydrocarbons and other gases upon the explosibility of acetylene

Reduction of phosphorus content in iron ore and concentrate from Iron Mountain, Mo.

Ione-Carbondale clays, Amador County, Calif.

Laboratory methods for evaluating materials for mineral-wool production

Ore dressing investigation of oxidized lead ores from Missouri and Illinois

Concentration of Lake Valley mines oxide manganese ores from Deming, N. Mex.

Margerum bauxite district, Colbert County, Ala.

Determination of moisture in coal with the Brabender semiautomatic tester

Camp Bird lead-zinc deposits, Ouray County, Colorado

A combination cleaning and dewatering process for treating fine sizes of coal :preliminary report

Heating-value loss of coal on air-drying

Investigation of the Crescent lead and zinc mine, Iowa County, Wis.

Investigation of ore-dressing methods for barite ores from New Mexico, Missouri, and Arkansas

Investigation of Rex zinc mine, Howell County, Mo.

Manufacture of sponge iron in ceramic tunnel kilns

Determination of sulfur dioxide in air by means of the midget impinger

Critical review of chemistry of Oxo synthesis for production of alcohols from olefins, carbon monoxide, and hydrogen :with discussion of reaction mechanism for Oxo and related syntheses

Extraction of alumina from high-iron bauxites :pilot-plant tests employing the lime-soda sinter process

Concentration of miscellaneous oxide manganese ores from Yavapai, Yuma, Maricopa, and Mohave counties, Ariz.

Penn Mine slag dump and mine water, Calaveras County, Calif.

Tungsten deposits in Alaska

Development of a successful hard-surfaced bit for drilling oil shale

Correll zinc mine, Lehigh County, Pa.

Lead and zinc deposits of the Treasure Hill mines, Ophir mining district, Tooele County, Utah

Yakobi Island nickel deposit, Sitka Mining District, Alaska

Elimination of iron in ammonium sulfate process for production of alumina from clay


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