Coal: Its Properties, Analysis, Classification, Geology, Extraction, Uses and Distribution |
Other editions - View all
Common terms and phrases
acid amount analyses anthracite basin bituminous coal briquetting brown coal Bull calorific value cannel coal Carboniferous cent Class of Coal classification clay coal beds coal deposits coal fields coal lands Coal Measures coal mined Coal Resources coal seams coal-bearing coke combustion composition constituents contains cycads depth Devonian Eocene faulted feet in thickness feet thick Fixed carbon folded formation fossils fracture gases geological gram heat hydrogen igneous rocks inches Jurassic known Lepidodendron lignite Lower method miles mineral Miocene moisture nitrogen oven oxidation oxygen peat Pennsylvania percentage Permian pillars places plants Pottsville produce province pyrite region River sample sandstone semianthracite semibituminous shaft shale short tons South specific gravity spores strata subbituminous coal sulphide sulphur Survey swamps temperature Tertiary tons Triassic U. S. Bur U. S. Geol Upper Cretaceous varies vegetal matter volatile matter
Popular passages
Page 237 - ... of entry, under the preceding section, of the mines so opened and improved: Provided, That when any association of not less than four persons, severally qualified as above provided, shall have expended not less than five thousand dollars in working and improving any such mine or mines, such association may enter not exceeding six hundred and forty acres, including such mining improvements.
Page 237 - Any person or association of persons severally qualified, as above provided, who have opened and improved, or shall hereafter open and improve, any coal mine or mines upon the public lands, and shall be in actual possession of the same...
Page 236 - SEC. 2347. Every person above the age of twenty-one years, who is a citizen of the United States, or who has declared his intention to become such, or any association of persons severally qualified as above, shall, upon application to the register of the proper land office, have the right to enter, by legal subdivisions, any quantity of vacant coal lands of the United States not otherwise appropriated or reserved by competent authority...
Page 239 - Act, or which, together with any other interest or interests as a member of an association or associations or as a stockholder of a corporation or corporations...
Page 42 - Joint Committee of the American Society for Testing Materials and the American...
Page 57 - BaSO4 is soluble in acids and even in pure water, and the solubility limit is reached almost immediately on contact with the solvent. Hence, in the event of using reagents of very superior quality or of exercising more than ordinary precautions, there may be no apparent "blank," because the solubility limit of the solution for BaSC>4 has not been reached or at any rate not exceeded.
Page 239 - ... and no person or corporation shall take or hold any interest or interests as a member of an association or associations or as a stockholder of a corporation or corporations holding a lease under the provisions hereof, which, together with the area embraced in any direct holding of a lease under this act, or which, together with any other interest or interests as a member of an association or associations or...
Page 47 - The utmost dispatch must be used in order to minimize the exposure of the sample until the weight is found. After removing the covers, quickly place the capsules in a preheated oven (at 104° to 110° C.) through which passes a current of air dried by concentrated H2SO4 (the current of dry air is not necessary for coke).
Page 238 - An Act to promote the mining of coal, phosphate, oil, oil shale, gas, and sodium on the public domain
Page 4 - SPECIFIC GRAVITY. THE Specific Gravity of a body, is the ratio of its weight to the weight of an equal volume of some other body assumed as a standard.