Report of Progress

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Board of Commissioners for the Second Geological Survey., 1884 - Coal
 

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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.

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