Report of Progress ...

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Board of Commissioners for the Second Geological Survey, 1880
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Page 271 - 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 271 - RIVER VALLEY IN FAYETTE AND WESTMORELAND COUNTIES, with Geological Notes of the Coal and Iron Ore Beds, from Surveys, by Charles A. Young; by Franklin Platt. To which are appended: I. A Report on Methods of Coking, by John Fulton. II. A Report on the use of Natural Gas in the Iron Manufacture, by John B. Pearse, Franklin Platt, and Professor Sadtler. Pp. 252. Price, $1 00 ; postage, $0 12.
Page iv - FA GENTH— Mineralogist and Chemist at Philadelphia. FA GENTH, Jr — Aid in the Laboratory. AS McCREATH — Chemist, in charge of the Laboratory of the Survey, 223 Market street, Harrisburg. JOHN M. STINSON— Aid in the Laboratory. CE HALL— Geologist in charge of the Survey of Delaware county, and Palaeontologist in charge of the Museum.
Page 270 - E. SPECIAL REPORT ON THE TRAP DYKES AND Azoic ROCKS OF SOUTHEASTERN PENNSYLVANIA — 1875. Part I, Historical Introduction. By T. Sterry Hunt. 8 vo., pp. 253. Price, $0 48 ; postage, $0 12.
Page 270 - Butler, Armstrong, and Clarion Counties, by D. Jones Lucas : and also a Map and Profile of a line of levels along Slippery Rock Creek, by JP Lesley. 8 vo., pp. 122 ; 5 maps and sections, a plate and 5 cuts. Price in paper, $0 75 ; postage, W 06. Price in cloth, $1 00 ; postage, $0 08. K. REPORT ON GREENE AND WASHINGTON COUNTIES — 1875, Bituminous Coal Fields.
Page 272 - Other Reports of the Survey are in the hands of the printer, and will soon be published. The sale of copies is conducted according to Section 10 of the Act, which reads as follows : * * * " Copies of the Reports, with all maps and supplements, shall be donated to all public libraries, universities, and colleges in the State, and shall be furnished at cost of publication to all other applicants for them.
Page 272 - 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 239 - The coal does not coke, and the gases burn with a very feebly luminous flame. The coal, after being dried, begins to absorb water rapidly, and in two hours has re-absorbed sixty per cent. of the water originally present. This amount is not increased by longer exposure.
Page 239 - " 245 " " same. '• "200 " ". 4.19^ " 340 " " 4.50% "460 " " 4.69 % At a dull red heat the Coal loses 12.59 % But in all these experiments the water re-absorbed is about the same ; that is, the coal re-absorbs 2.48 parts of water. Irrespective, therefore, of the amount of water, &c., driven off by heat, the portion re-absorbed is practically constant ; and this property is not destroyed, even aller all the volatile matter is driven off.

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