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30 degrees A. S. McCreath anticlinal anticlinal is crossed axis basin Bedford county Bedford township bench Broad Top brown hematite Carbonate Catskill Chemung Chemung conglomerate chert clay Clearville Clinton concealed crest dipping eastward Dunning's east side easterly dip Evitts Evitts mountain exposed exposures were found farm feet flaggy fold fork fossil fragments Fulton county gray half a mile Hamilton Hopewell inches Insoluble residue Juniata river Licking creek lime limestone lower Medina Mauch Chunk Medina Metallic iron mill mined Morrison's cove Napier township nearly northward occurs Oriskany outcrop passes Phosphorus Pigeon Cove pike Pocono quarry railroad reached red shales road leading rocks rods sandstone sandy School-house Scrub ridge seen shales shales are shown shows Sideling hill southward Spring Sulphur summit surface synclinal thence thickness Tonoloway township line Tussey mountain upper conglomerate valley Warrior ridge West Providence west side westward Yellow creek yellow shales
Page 385 - The Geology of the OIL REGIONS OF WARREN, VENANGO, CLARION, AND BUTLER COUNTIES, including surveys of the Garland and Panama Conglomerates in Warren and Crawford, and in Chautauqua county, New York.
Page 387 - COUNTY, by H. Martyn Chance, with colored geological map of county, a map of the Anticlinals and OIL BELT, a contoured map of the Old River Channel at Parker, 83 local sections figured in the text, and 4 page plates. Price, $0 43 ; postage, $0 12.
Page 385 - REPORT OF PROGRESS IN THE FAYETTE AND WESTMORELAND DISTRICT OF THE BITUMINOUS COAL FIELDS OF WESTERN PENNSYLVANIA — 1876. By JJ Stevenson ; pp. 437, illustrated by 50 wood-cuts and 3 county maps, colored. Part I. Eastern Allegheny County, and Fayette and Westmoreland Counties, west from Chestnut Ridge. Price, $1 40 ; postage, $0 20.
Page 387 - PROGRESS — 1878. Parti. The Northern Townships of Butler county. Part II. A special survey made in 1875, along the Beaver and Shenango rivers, in Beaver, Lawrence, and Mercer Counties.
Page 385 - I. REPORT OF PROGRESS IN THE VENANGO COUNTY DISTRICT — 1874. By John F. Carll. With observations on the Geology around Warren, by FA Randall; and Notes on the Comparative Geology of North-eastern Ohio and Northwestern Pennsylvania, and Western New York, by JP Lesley. 8 vo., pp. 127, with 2 maps, a long section, and 7 cuts in the text. Price in paper, $0 6O; postage, $0 05.
Page 383 - B. PRELIMINARY REPORT OF THE MINERALOGY OF PENNSYLVANIA — 1874. By Dr. FA Genth. With appendix on the hydro-carbon compounds, by Samuel P. Sadtler. 8vo., pp. 206, with map of the State for reference to counties. Price in paper, $0 50; postage, 50 08.
Page 384 - The Geology of POTTER COUNTY, by Andrew Sherwood. Report on the COAL FIELDS, by Franklin Platt, with a colored geological map of county, and two page plates of sections.
Page xv - XV in letter of transmittal volume T2, 1882) "My own survey of the coal field, more than twenty years ago, was very elaborate, and my contoured maps of it covered two-thirds of the field." But he withheld the report until the mapping could be completed, which was never done. Preparing structure contours in the absence of topography is not satisfactory unless a great deal of information is at hand from underground mine levels, etc. Consequently it was found that...
Page 88 - It is nowhere exposed in detail, but it consists mainly of blue to very dark blue flaggy to slaty limestones, mostly non-fossiliferous. The darker limestones are fetid when struck and ring sharply. Some reddish beds near the middle of the mass are not flaggy but thick-bedded. Partial exposures of this division were seen at Hyndman and elsewhere along the west foot of Will's mountain ; a very fair exposure was found in Cumberland Valley township of Bedford county, where the thickness as given was...