Bulletin, Τεύχη 61-68

Εξώφυλλο
U.S. Government Printing Office, 1913
 

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Σελίδα 69 - ... shall be appointed by the president, with the ' approval of the executive committee, at least within thirty (30) days following the holding of the annual meeting.
Σελίδα 31 - The selection of explosives used in engineering and mining operations, by Clarence Hall and SP Howell. 1913. 50 pp., 3 pis., 7 figs. BULLETIN 50.
Σελίδα 31 - Mining and treatment of feldspar and kaolin in the southern Appalachian region, by AS Watts. 1913. 170 pp., 16 pis., 12 figs. BULLETIN 56.
Σελίδα 57 - Ib. or more shall be collected. The gross sample should contain the same proportion of lump coal, fine coal, and impurities as is contained in the coal sampled. When coal is extremely lumpy, it is best to break a proportional amount of the lumps before taking the various increments of a sample.
Σελίδα 19 - placer claim," as here used, is meant ground within defined boundaries which contains mineral in its earth, sand or gravel ; ground that includes valuable deposits not in place, that is, not fixed in rock, but which are in a loose state, and may in most cases be collected by washing or amalgamation without milling.
Σελίδα 34 - V) by depositing each shovelful of coal on top of the preceding one, and then formed into a long pile in the following manner : The sampler shall take a shovelful of coal from the conical pile and spread it out in a straight line (Figs.
Σελίδα 59 - Columbia, fail to prosecute faithfully and diligently the work in accordance with the specifications and requirements of this contract, then, in either case, the...
Σελίδα 19 - December, 1912.) Excessive Ground. A mining location duly made according to the mining laws is not invalid where the locator includes within the boundaries of his claim more than the law permits, as in such case he is entitled to hold to the limit which the law authorizes within the limits he has laid out, and the territory embraced within his boundaries in excess of such limits is to be rejected...
Σελίδα 53 - State articles or work inferior to those required by contract. Payment for work done will be made only on the complete and satisfactory delivery and inspection of each lot ordered, and after proper examination and...
Σελίδα 90 - This is of a similar quality and is found at the same locality; the minute grains of corundum have a yellowish or brownish-white color, and show in many places cleavage fractures, which give it the appearance of a felspathic mineral.

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