Bulletin, Vydání 120–124U.S. Government Printing Office, 1916 |
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Air-drying loss bed face bed was sampled Bituminous coal Briceville British ther Calorific value Carboniferous age cent chemical analyses-Continued Chickaloon clay Coal Creek coal sampled coal see U. S. composite of samples composite sample COUNTY Cretaceous cut at face cut from face dredge drift mouth drill east entry F. R. Clark face of 11 face of main feet east feet from entrance feet from opening feet from shaft feet north feet northeast feet south feet southwest feet west geologic relations given under laboratory hard included in sample left entry Lignite main entry main west entry measured at face miles north miles northwest Mother coal north entry outcrop pit mouth Pottsville R. R. Coal bed right entry room-and-pillar system sandstone Section A sample Sections of coal slope mouth southeast Streak Sulphur Survey Bull Thickness of bed Thickness of coal tons U. S. Geol ultimate analysis underclay
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Strana 74 - That must always rest upon some difference which bears a reasonable and just relation to the act in respect to which the classification is proposed, and can never be made arbitrarily and without any such basis.
Strana ii - The Bureau of Mines, in carrying out one of the provisions of its organic act — to disseminate information concerning investigations made — prints a limited free edition of each of its publications. When this edition is exhausted, copies may be obtained at cost price only through the Superintendent of Documents, Government Printing Office, Washington, DC The Superintendent of Documents is not an official of the Bureau of Mines.
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Strana 13 - In proper condition ; but that in no event shall it be contributory negligence or an assumption of the risk on the part of a servant to remain in the employment of the master or employer after knowledge of the defect or negligence, causing the Injury, unless he be a servant whose duty It is to remedy the defect or who committed the negligent act causing the Injury complained of.
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