Bulletin of the United States Geological Survey

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The Survey., 1915
 

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Seite 210 - Table show the estimated compensation-value of the unexhausted residue from one ton. consumed (flint is, after the tenant has realised the benefit of the increase of his crops), to be, if used each year for eight years, as given in the first column of the following Table ; the second column showing the amount per acre per annum : — Thus, according to the first column of the Table, the value of the unexhausted manure-residue from the consumption of one ton of linseed-cake annually for eight years...
Seite 202 - The Sulphides of Zinc, Cadmium and Mercury; Their Crystalline Forms and Genetic Conditions", Am.
Seite 51 - Stabler, who based his assumption on the experimental work whose results are published by the United States Geological Survey and the United States Reclamation Service.
Seite 43 - ... Iselin and Holsten analyses were collected by the writer. In taking the samples a cut was made at a working face from top to bottom of that portion of the seam which is marketed. The samples were mixed and quartered and sealed in glass fruit jars.
Seite 147 - ... after slowly filtering through was found, as in the previous experiment, to have abandoned the whole of its silica, while the coral had lost nearly all its lime, although retaining its structure in a great measure. It was, however, covered with a thick film of gelatinous silica. Mr. Church further observed that the addition of small portions of the solid carbonate of lime, barytes, or strontia to a strong solution of pure silica caused it to gelatinize immediately; and according to Graham solutions...
Seite 227 - Lead and zinc deposits of the Mississippi Valley: Am. Inst. Min. Eng. Trans., vol. 22, PP.
Seite 176 - HARRIS, GD — Oil and Gas in Louisiana, with a Brief Summary of Their Occurrence in Adjacent States.
Seite 45 - Becker c in the fresh granites near Steamboat Springs, Nevada. In the porphyries of Leadville, Colorado, WF Hillebrand d was able to determine lead. Out of 18 samples, taken at points distant from ore bodies, three contained no lead, the richest carried 0.0064 per cent, and the average was 0.002 per cent of PbO. One porphyry yielded 0.008 per cent of zinc oxide, and a rhyolite contained 0.0043 per cent. Silver was also found in these rocks in variable quantities, the best average...
Seite 147 - On silica, Chem. News, vol. 5, p. 95, 1862, removed [from the solution]. Similar results, though to a less extent, were obtained with shells. In another experiment a fragment of a recent coral was fitted into the neck of a funnel, and a solution prepared as above, with a little carbonic acid and containing one one-hundredth of silica, was allowed to drop on the coral, and after slowly filtering through was found, as in the previous experiment, to have abandoned the whole of ite silica, while the...
Seite 194 - The large faults do not produce a fault breccia of such extent as the "breccia" in the producing areas. There is very little calcite and practically no dolomite in connection with the ores. The water in the Peoria and Lincolnville camps is not artesian and that in the Miami camp can probably be accounted for by the rainfall on the territory immediately to the east. The ores are intimately associated with outcrops of the Pennsylvanian shales which contain small quantities of galena, of sphalerite...

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