Lead and Zinc in the United States: Comprising an Economic History of the Mining and Smelting of the Metals and the Conditions which Have Affected the Development of the IndustriesHill publishing Company, 1908 - 368 páginas |
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Términos y frases comunes
American Smelting antimony argentiferous assaying average base bullion blast furnace blende Bonne Terre calamine Cañon carbonate charge chiefly Coeur d'Alene Colo Colorado copper cost of mining cost of smelting County deposits desilverized discovery early Engineering and Mining erected Eureka extent extraction flux franklinite freight galena Geological gold grade Granby Hill important increased iron Jersey Joplin district Kansas labor latter lead carbonate lead mining lead-producing districts Leadville limestone Louis manufacture metal metallurgical methods miles milling mining and smelting Mining Journal Mississippi Missouri Motte National Lead Co Nevada operation ore-bodies output pig lead plant practice previously price of lead production of lead profit railway reduced refinery reverberatory furnaces River roasting Rocky Mountains Salt Lake Scotch hearth shafts silver silver-lead slag smelters Smelting and Refining southeastern Missouri sulphide supply tariff tion tons of lead United Utah veins West willemite Wisconsin zinc oxide
Pasajes populares
Página 312 - Of recent years there has been a marked tendency on the part of American manufacturers who have developed an export trade to establish factories in Canada or in Great Britain and Germany.
Página 87 - As he received also a special grant of mines and minerals in the neighborhood of Middletown, Conn., it is not unlikely that the old Middletown silver-lead mine, the date of the discovery of which is not precisely known, was opened by him or his successors. The nickel and cobalt mines near Chester, in Connecticut, once held to be very promising...
Página 220 - ... estimated duties for the transportation of the ores by common carriers bonded for the transportation of appraised or unappraised merchandise to properly equipped sampling or smelting establishments, whether designated as bonded warehouses or otherwise. On the arrival of the ores at such establishments they shall be sampled according to commercial methods under the supervision of Government officers, who shall be...
Página 138 - S68.464.50 a directly to collect the rents, and a considerable additional sum had been spent in litigation. It was therefore decided to sell the lands. Preliminary to this a survey was ordered in 1839 and placed in charge of that pioneer geologist, DD Owen. This survey was in many particulars unique. Owen began field work in September and, with the aid of a large number of assistants, finished it before winter. A report, accompanied by maps, sections, figures, descriptions, and fossils was submitted...
Página 227 - Coeur d'Alene large producers would realize no profit, even after disregarding allowances for amortization. It would be highly difficult to generalize the capital account in this district, but probably it would not be far out of the way to say that the...
Página 219 - Lead ore and lead dross, one and one-half cents per pound: Provided, That silver ore and all other ores containing lead shall pay a duty of...
Página 122 - ... some crevice in the rock having the appearance of a regular vein. At this stage of the pursuit most of the diggings have been abandoned and frequently with small veins of ore in view. No matrix is found with the ore, which is dug out of the alluvial soil, but it is enveloped by the naked earth, and the lumps of ore are incrusted by an ocherous earth.
Página 130 - After the completion of the treaty negotiations the miners again crossed over into the much coveted region where they built cabins and commenced to take out much ore. But a second time they were forced to leave because the treaty had not been ratified. In June, 1833, the treaty went into effect and the way was at length clear for settlers to take possession of the land. During...
Página 130 - ... by which we as miners will be governed, and having duly considered the subject, do unanimously agree that we will be governed by the regulations on the east side of the Mississippi River,* with the following exceptions, to wit : ARTICLE I. That each and every man shall hold 200 yards square of ground by working said ground one day in six.
Página 220 - ... for exportation, under the direction of the proper officer having charge thereof as aforesaid, whose certificate, describing the articles by their marks or otherwise...