Allegany County

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Johns Hopkins Press, 1900 - Geology - 323 pages

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Page 72 - A REPORT TO THE NAVY DEPARTMENT OF THE UNITED STATES ON AMERICAN COALS : Applicable to Steam Navigation and to other purposes.
Page 85 - AND OTHERS. Report of progress of stream measurements for the calendar year 1897, including papers by Dwight Porter, JB Lippincott and other hydrographers. 19th Ann.
Page 74 - First Report of Philip T. Tyson, State Agricultural Chemist, to the House of Delegates of Maryland, January, 1860.
Page 64 - A Report to the Navy Department of the United States on American Coals, Applicable to Steam Navigation, and to other purposes.
Page 96 - O'Harra in the report previously cited: Lithologically, the Helderberg is preeminently a limestone formation. Argillaceous materials occur as impurities in some of the beds, but these are not important, and sandstones are almost wholly lacking. Thin bands of chert, which are white or yellowish-white in color, occur sparingly throughout the upper part of the formation. Most of the limestone in the upper part is heavily bedded, and much of it is highly fossiliferous. The lower part of the Helderberg...
Page 74 - TYSON, PHILIP T. Second Report of Philip T. Tyson, State Agricultural Chemist, to the House of Delegates of Maryland, Jan.
Page 71 - JH Report on the Manufacture of Iron addressed to the Governor of Maryland by JH Alexander. Printed by order of the Senate. Annapolis, 1840, 8vo, 369 pp., 3 plates.
Page 79 - STEVENSON, JOHN J. Notes on the Lower Carboniferous groups along the easterly side of the Appalachian area in Pennsylvania and the Virginias. Amer. Jour. Sci., 3rd ser., vol. xxxiv, 1887, pp. 37-44. General discussion of the " Umbral " and " Vespertine," containing notes on the " Umbral
Page 235 - ... of the Chesapeake and Ohio Canal. On June 5, 1895, when there were. 216 cubic feet per second, or second-feet, in the river, there were, in the canal feeder 40 second-feet. On June 6 the river discharged! 530 second-feet and the canal feeder carried 79 second-feet; on June. 13 the river discharged 149 second-feet and the canal feeder carried; 38 second-feet; on July 17 the river discharged 266 second-feet and the, canal feeder carried 79 second-feet.
Page 283 - The greatest damage to large timber observable within recent times resulted from a fire which occurred about six years ago. Considerable dry, down timber in some localities where selective cutting for saw-timber had been done, attended by a dry season, resulted in an unusually severe fire. Few large trees were killed, but many were badly burned in spots at the collar, evidently from the burning of unused logs and treetops lying near or in contact with green trunks. While these burney trees survived...

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