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100 parts iron Alumina Armstrong County bank brittle Brown hematite calcite Carbonate of lime Carbonate of magnesia Clarion County coarse-grained Coke Color of ash Cumberland County Dillsburg dull black Elk County Fairmount Coal Ferriferous limestone fine-grained Fixed carbon Fossil Franklin County Freeport Lower coal Freeport Upper limestone Fuel ratio half miles north hard and tough iron and alumina Kittanning Kittanning Lower coal limestone Madison township Magnesia Mahoning creek Metallic iron Metallic manganese mile east miles north east miles south west miles west Mont Alto Iron north west organic matter Oxide of iron pearl grey Perry County Phosphoric acid Phosphorus in 100 pieces taken Pine township postage Protoxide of iron quarry reddish brown reddish grey Report of Progress Sample consisted Sesquioxide of cobalt Sesquioxide of iron Sesquioxide of manganese Silicious matter south east Stewardson furnace Sulphuric acid thick three miles south trace valley Venango county Volatile matter Water and organic
128 ページ - REPORT OF PROGRESS IN THE CAMBRIA AND SOMERSET DISTRICT OF THE BITUMINOUS COAL FIELDS of Western Pennsylvania — 1875. By F. and WG Platt. Pp. 194, illustrated...
129 ページ - 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.
129 ページ - 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.
127 ページ - REPORT OF PROGRESS IN 1877. The Geology of LANCASTER COUNTY, with an atlas containing a colored geological map of the county, local map of the GAP NICKEL MINE, map and sections of the East Bank of Susquehanna River ; other geological sections across the county, and geological colored maps of York and Lancaster counties. By Persifor Frazer. 8 vo., pp. 350. Price of Report, $0 89 ; postage, $0 16.
130 ページ - 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. 8 vo., pp. 248, with 4 maps, 1 profile section and 154 vertical sections. By H. Martyn Chance. Price, $0 70 ; postage, $0 15.
129 ページ - IV. Utilization of Anthracite Slack, by Franklin Platt. V. Determination of Carbon in Iron or Steel, by AS McCreath. With 3 indexes, plate, and 4 page plates. Pp. 438.
127 ページ - Commissioners, at Harrisburg, and the prices have been fixed as follows, in accordance with the terms of the act : PRICES OF REPORTS. A. HISTORICAL SKETCH OF GEOLOGICAL EXPLORATIONS in Pennsylvania and other States. By JP Lesley. With appendix, containing Annual Reports for 1874 and 1875 ; pp. 226, 8vo.
129 ページ - O. CATALOGUE OF THE GEOLOGICAL MUSUEM — 1874-5-6-7. By Charles E. Hall. Part I. Collection of Rock Specimens. Nos. 1 to 4,264.
130 ページ - Price, $0 60 ; postage, $0 11. B. REPORT OF PROGRESS. The Geology of McKean County, and its connection with that of Cameron, Elk, and Forest. By Chas. A. Ashburner. Pp. 370. Illustrated by 33 page plates and 2 maps, and accompanied by an atlas containing 8 sheetsof maps and sections.