White. Also, the fiiscovery of ihe Preulacial Outlet of Lakk Erie, 

 with two maps of the Lake Region. By J . W. Sjieucer, Ph. D. Price, ?1 17 ; 

 postage. ?0 18. 



I, I , 13. I', 0,3, V, V2 and R. Petroleum Region Reports. BA'Johu 

 F. Caill, I. C. White, H. M. Chance, and Chas. A. Ashburuer. 



CENTRAL PENNSYLVANIA. 



F. Report of Progress in the Juniata District on Fossil Iron Ore 

 Beds of Middle Pennsylvania. By John H. Dewees. With a report of the 

 AuGHWicK Valley and East Broad Top District. By C. A. Ash- 

 burner. 1874-8. Illustrated with 7 Geological maps and 19 sections. S vo., 

 pp. 305. Price, §2 55 : postage, SO 20. 



G. Report of Progress in Bradford and Tioga Counties. By 

 Andrew Sherwood. (See Reports Bituminous Coal Fields.) 



G-, Report of Progress. Geology of LiYComing and Sullivan 

 Counties. I. Field Notes by Andrew Sherwood. II. Coal Basins, by 

 Franklin Piatt. With two colored geological county maps and numerous 

 illustrations. 8 vo., pp. 268. Price, $1 06 ; postage, ?0 14. 



G' Report OF Progress IN Clinton County. By H. M. Chance. (See 

 Reports Bituminous Coal Plelds.) 



G'. Report of Progress. The Geology in the Susquehanna 

 River Region in the Six Counties of Wyoming, Lackawanna, Lu- 

 zerne, Columbia, Montour, and Northumberland. By I. C. White. 

 W^ith a colored Geological Map in 2 sheets; and 31 page plates in text. Pp. 

 464. Price, gO 85 ; postage, $0 20. 



T. Report of Progress. Geology of Blair County, with 35 illustra- 

 trations and an Atlas of 14 sheets of the colored map of Morrison's Cove, 

 &c. ; 1 index sheet, and 2 sheets of colored sections. By Franklin Piatt. 

 Price of Report and Atlas, §4 55 ; postage, $0 28. 



T-'. Report of Progress — 1882. The geology of Bedford and Fulton 

 Counties. By J. J. Stevenson. 8 vo., pp. 382. Illustrated with 2 colored 

 geological majjs. Price, 80 80 ; postage, 10 20. 



NORTH-EASTERN PENNSYLVANIA. 



G'. Report of Procuress. The Geology of Susquehanna County 

 AND Wayne County. By I. ('. White. Pp.243, witli Geologiwil map and 

 58 sections. Price, ZO 70 ; postage, $0 12. 



G . Report of Progress, 1881. The Geology of Pike and Monroe 

 Counties. By I. C. Wliite. 8 vo., pp. 407. Illustrated witli colored Geo- 

 lof/tcal county maps, a inap of glacial scratches, and 7 small sections. Also 

 special surveys of the Delaware and TiEHioH Water Gaps. By If. .M. 

 Chance, with 2 contoured majts of Water < Japs, and 5 detailed sections. I'ricc, 

 fl 15; p(Wtage, fO 15. 



G". The Geology in the Su.squehanna (North Branch) Rivkr 

 Region in the Six Counties of Wyoming, LA<MiAWANNA, Luzkhne, 



(;OLUMBIA, Mo.NTOUR, NORTHUMBERLAND, (CXClUSive of A NTH UACITE RE- 

 GION.) By I. C. White. (See Reports Central Pennsylvania.) 



G. Report of Pro<4Ress in Bradford and Tioga Counties. By 

 Andrew Sherwood. (See Reports Bituminous Coal Fields.) 



A2, AA, and AC. Anthra(,mte Region Reports. By Franklin Flatt, 

 Cha.s. A. Ashburuer, and II. M. Chance. (.See Reports Anthracite Coal Fiehls.) 



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