Report of ProgressBoard of Commissioners for the Second Geological Survey., 1884 - Coal |
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abdomen abdominal segments alternata ANTHRACITE Ashburner assistant geologist ATLAS Beecher belonging BITUMINOUS COAL Bituminous Coal Fields Board of Commissioners breadth broad C. E. Hall Cannelton carapace CARBONIFEROUS carinæ cephalic area Cephalic region Ceratiocaris Chas Chemung group coal measures colored geological map convex crustaceans curving Darlington township denticles described Devonian diameters enlarged Eurypterus EURYPTERUS MANSFIELDI fossils fragment Franklin Platt furnished genus geologist H. M. Chance Harrisburg I. C. White illustrated interrupta J. J. Stevenson J. P. Lesley joints lateral spines left valve longitudinal ridges lower margin lower posterior end mandibles median appendage oblique optic node optic spots palpi Pennsylvania Philadelphia PHYLLOCARIDA postage posterior segment Price in paper Prof Pterygotus REPORT OF PROGRESS Reports Bituminous Coal Reports Central Pennsylvania rocks shale sheets showing the form siliqua somite species striæ surface Survey of Pennsylvania telson thickened thoracic plate thoracic portion tion triangular tubercles valves VENANGO COUNTY W. G. Platt WARREN COUNTY Whitfield width
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Page 7 - R. REPORT OF PROGRESS. The Geology of McKEAN COUNTY, and its connection with that of CAMERON, ELK, and FOREST, with Atlas containing 8 sheets of maps and sections. By Chas. A. Ashburner. Price, $1 70 ; postage, $0 22. T. REPORT OF PROGRESS. Geology of BLAIR COUNTY, with 35 illustratrations and...
Page 8 - PENNSYLVANIA, its Production, Transportation, Manufacture, and Statistics. By Henry E. Wrigley. To which are added a Map and Profile of a line of levels through Butler, Armstrong, and Clarion Counties, by D.
Page 7 - REPORT OF PROGRESS IN 1877. The Geology of LAWRENCE COUNTY, to which is appended a Special Report on the CORRELATION OF THE COAL MEASURES in Western Pennsylvania and Eastern Ohio. 8 vo., pp.
Page 8 - 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.
Page 6 - H. REPORT OF PROGRESS IN THE CLEARFIELD AND JEFFERSON DISTRICT OF THE BITUMINOUS COAL FIELDS of Western Pennsylvania — 1874. By Franklin Platt.
Page 6 - GEOLOGY OF CLINTON COUNTY. Part II. A special study of the CARBONIFEROUS and DEVONIAN STRATA along the West Branch of Susquehanna River.
Page 26 - Eurypterus, particularly in the great length and sim'' pie extremity of the mesial appendage of its operculum, " as well as in the possession of two little spatulate supple"mentary pieces (ss). Hence we very strongly suspect " that other characters will be found, when better speci"mens can be studied, showing it to belong to a distinct " sub-genus, if not indeed to an entirely distinct genus from '' Eurypterus proper, in which case we have proposed for it "the name Anthraconectes.