Mineral Resources of the United States, Parte2U.S. Government Printing Office, 1928 |
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Términos y frases comunes
Alabama Alaska anthracite Arkansas asphalt average value bituminous coal Building Bureau of Foreign Bureau of Mines by-product California Canada cent in quantity cent in value Chemical clay coke Colorado compared with 1924 consumption County Creek crude petroleum Cubic feet Value decrease district Domestic Commerce exports feldspar field figures Florida fluorspar fuel fuller's earth Georgia grade Gross tons Gypsum haulage Idaho Illinois imports increased Indiana industry Iowa Jersey Kansas Kentucky Lignite lime Long tons Louisiana magnesite manufacture Maryland Mexico mica Michigan mills Mineral Missouri Montana North Carolina Ohio Oklahoma operators Oregon output Pennsylvania phosphate phosphate rock plants Portland cement pounds quarries refineries reported roofing Sand shipments shipped Short tons Value Silica slate sold by producers South Dakota statistics stocks stone Street sulphur TABLE talc Tennessee Texas tons Value Short Total Average United Utah Value Short tons Washeries Washington West Virginia Wyoming York
Pasajes populares
Página 20 - The market for the bulk of the fluorspar sold in the United States depends on the steel industry and the demand fluctuates with the rise and fall in the production of steel.
Página 274 - Provided, That if any country, dependency, province, or other subdivision of government imposes a duty on any article specified in this paragraph, when imported from the United States, an equal duty shall be imposed upon such article coming into the United States from such country, dependency, province, or other subdivision of government].
Página 255 - ... if a company has establishments at different places its mill or group of mills at each place is counted as a plant. In the table by districts the statistics are for groups of States, or parts of States, that are geographically and commercially related.
Página 301 - Silica as considered in this chapter is used. for many purposes, principally in the manufacture of pottery, paints, and scouring soaps, as a wood filler, as a polisher, and in metallurgical and chemical processes. In the pottery industry, where it is generally called flint, silica is used in the body of the ware to diminish shrinkage and is also used in glazes. Silica for use in pottery should contain less than 0.5 per cent of iron-bearing minerals. Manufacturers of paint use considerable quantities...
Página 189 - ... built-up mica, and all manufactures of mica, or of which mica is the component material of chief value, 30 per centum ad valorem; ground mica, 15 per centum ad valorem.
Página 459 - Even where the coal is actually sold large quantities may be moved on "cost-plus" contracts that provide for prices below the average spot prices in the field or the average prices received for coal delivered under ordinary contracts. The figures in the following tables, therefore, do not necessarily show prices or even an average of the prices of coal at the mines. Taken over a period of years, however, they do furnish an index to the rise and fafi in the value of coal. The computed " average value...
Página 221 - Marble showed an increase in value but a slight decrease in quantity, and "other" stone decreased in both quantity and value. The tables in this report give the quantities sold or used by producers and the values fob quarries and mills, so far as these are obtainable. Stone quarried and used by the producer is considered as sold and is included in the figures given for sales. The figures...
Página 187 - Yi by 2 inches and would be classed as " 1 ^ by 2 inches" would have to measure nearly 3 by 4 inches. Splitth.gCs are the thin films or flakes of mica that are split from the smaller sheet or waste material. They are about one-thousandth of an inch thick and are irregular in shape. Material suitable as scrap mica for grinding must be free from all foreign matter, especially gritty material such as quartz and feldspar. The system of classification of mica, by sizes, is different in the United States,...
Página 26 - Fuller's earth is also said to be used in the manufacture of pigments for printing wall paper, in detecting certain coloring matters in some food products, as a substitute for talcum powder, and in medicine as a poultice and as an antidote for alkaloid poisons.
Página 187 - amber" mica is also classified on the basis of the size of the rectangle obtainable, but the sizes differ from those used for the United States mica. The sizes used for Canadian mica, in inches, are 1 by 1, 1 by 2, 1 by 3, 2 by 3, 2 by 4, 3 by 5, 4 by 6, and 5 by 8. The Indian classification is not based on the size of the rectangle obtainable but on the area of usable mica in the sheet. The following table shows the Indian system of grading, with the approximate corresponding sizes used in the United...