Mineral Resources of the United StatesU.S. Government Printing Office, 1927 |
Dentro del libro
Resultados 1-5 de 62
Página 1
... showed marked improvement over the preceding years of depression , and several established new high records of production . The several elements of the industry were restored to or had gained over their pre - war vigor with probably ...
... showed marked improvement over the preceding years of depression , and several established new high records of production . The several elements of the industry were restored to or had gained over their pre - war vigor with probably ...
Página 5
... showed the highest rate since 1918 and except for that in the abnormal years 1916 , 1917 , and 1918 the highest recorded . Domestic production of new refined copper from domestic and foreign sources has kept pace with consumption and ...
... showed the highest rate since 1918 and except for that in the abnormal years 1916 , 1917 , and 1918 the highest recorded . Domestic production of new refined copper from domestic and foreign sources has kept pace with consumption and ...
Página 6
... showed an encouraging increase of about 18 per cent . Lead mining was more active in 1923 than in 1922 , being stimu- lated by the higher price of lead , which averaged 12 cents a pound above the average in 1922. This gain followed a ...
... showed an encouraging increase of about 18 per cent . Lead mining was more active in 1923 than in 1922 , being stimu- lated by the higher price of lead , which averaged 12 cents a pound above the average in 1922. This gain followed a ...
Página 7
... showed in- creased output in 1923 and thereafter produced from ores treated directly for arsenic a much larger share of the total supply than they had before contributed . In the field of production of nonmetallic minerals other than ...
... showed in- creased output in 1923 and thereafter produced from ores treated directly for arsenic a much larger share of the total supply than they had before contributed . In the field of production of nonmetallic minerals other than ...
Página 8
... showed moderate to large increases . The advance in the construc- tion industries is reflected by increases in the mineral products they use , slate gaining 20 per cent ; cement , 16 per cent ; stone in general , 29 per cent ; and sand ...
... showed moderate to large increases . The advance in the construc- tion industries is reflected by increases in the mineral products they use , slate gaining 20 per cent ; cement , 16 per cent ; stone in general , 29 per cent ; and sand ...
Otras ediciones - Ver todas
Términos y frases comunes
alloys aluminum amalgamation amounted antimony Arizona bauxite bismuth bullion California cent of copper cents a pound Colorado containing copper Creek crude cyanidation decrease deep mines deposits district.-The domestic dredges Dry and siliceous dry gold exported feet ferromanganese figures galena gold and silver Gold Silver Copper grade gross tons Idaho included under Miscellaneous increased lead and zinc lead-zinc lithopone long tons manganese metal Mexico mill Mineral production Missouri Montana Nevada nickel operated ounces Fine ounces ounces of gold ounces of silver output pig iron Pittman Act placer mines plant platinum pounds of copper pounds of lead Pounds Pounds production of gold Quantity Value quicksilver recovered recovery refined reported scrap shaft shipments shipped Short tons Value siliceous Silver Copper Lead smelter smelting sphalerite spiegeleisen sulphide tons Value Short Total value troy ounces United Utah Value Pounds Value Value Short tons vanadium white arsenic yielded zinc concentrates zinc oxide
Pasajes populares
Página 126 - ... all pigments containing lead, dry or in pulp, or ground in or mixed with oil or water, not specially provided for, 30 per centum ad valorem.
Página 144 - Lead-bearing ore of all kinds, one and onehalf cents per pound on the lead contained therein : Provided, That on all importations of lead-bearing ores the duties shall be estimated at the port of entry, and a bond given in double the amount of such 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.
Página 65 - For this reason the smelter reports must be relied on for the silver production. As may be seen by inspection of the table, the quantity of silver produced in any year bears no direct ratio to the quantity of lead concentrates smelted during that year. The reason for this is that the silver content is so small in quantity that the silver bullion is stored and refined in batches.
Página 144 - ... 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 stationed at such...
Página 56 - County, the extreme northwestern county of the State. The ores have the same structural relations as in the upper Mississippi district generally, that is, they occur disseminated through the limestone, or in openings in it called "crevices," "pitches," or "flats," depending on their attitude to the horizontal.
Página 262 - about " is used, it Is understood that 5 per cent more or less of the quantity may be delivered. (c) Should the seller fail to make deliveries as specified in the contract, the purchaser has the option of...
Página 97 - ... 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 stationed at such establishments, and who shall submit the samples thus obtained to a Government assayer, designated by the Secretary of the Treasury, who shall make a proper assay of the sample and report the...
Página 549 - Approximate distribution, by producing States and Territories, of the production of gold and silver in the United States in 1923 [Figures supplied by the US Bureau of the Mint) • Gold valued at $20.67+ a fine ounce.
Página 314 - The following table shows the shipments of iron ore from Cuba since the opening of the mines in 1884. The statistics of the shipments of Cuban iron ore are collected by the United States Geological Survey.
Página 88 - But the intake at least into these channels of soldiers he said had averaged 8,000 per month. That was in his public statement. As I have understood it from all sources over there, there is considerably more at the end of the year than there was at the beginning. And you say so, too. How does that tie in with such a rosy report here that we are winning everything? Because in spite of the fine things you have done, it seems to me you still have a very formidable, determined, effective foe over there....