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

Catron and Sierra Counties tin deposits, N. Mex.

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

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"

Gallatin corundum deposit, Gallatin County, Mont.

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

Bush-Hutchins ilmenite, Roanoke County, Va.

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

Investigation of the Argall (Baggaley) zinc-lead mine, Iowa County, Wis.

Support of ground, iron-ore mines, Lake Superior district

Control of roof and prevention of accidents from falls of rock and coal :suggested roof supports for use at faces in conjunction with mechanical loading

Shaft sinking by diamond drilling, Bellefonte mine, National Gypsum Co., Centre County, Pa.

Emergency escapeways from coal mines

Laboratory study of the hot-water process for separating hydrocarbons from surface deposits of bituminous sandstones near Edna, Calif.

Magnetometric survey of the Mahopac magnetite mine, Putnam County, N.Y.

Investigation of the Sauk Mountain limestone deposits, Skagit County, Wash.

Investigation of the Minah lead-silver mine, Jefferson County, Mont.

Electrolytic manganese in open-hearth and Bessemer steel tests at Jones & Laughlin Steel Corp., Pittsburgh, Pa.

Investigation of Arkansas bauxite.

Natural-gasoline and cycle plants in the United States, January 1, 1948

Ignition qualities of hydrocarbons in the diesel-fuel boiling range

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

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

Sidney Mine, Pine Creek Area, Shoshone County, Idaho

Studies on methods for recovering scrap mica from pegmatite of the Black Hills, South Dakota


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