F 2. Report on Perry county, (Part I, geology,) by E. W. Claypole. 

 With two colored geological maps of the county ; 17 geological outline town- 

 ship maps as page plates; and 30 page plate cross and columnar sections. 8°, 

 pp. , 1884. Priced , postage, . (In press, October, I884.) 



G. Report on Bradford and Tioga counties, by A. Sherwood ; Report on 

 their coal fields (including forks of Pine creek in Potter county), by F. Piatt ; 

 Report on the coking of bituminous coal, by J. Fulton. (See L above.) 

 With 2 colored geological county maps, 3 page plates, and 35 cuts in the text. 

 80, pp. 271, 1878. Price $1 00, postage $0 12. 



G 2. Report on Lycoming and Sullivan counties : field notes by A. Sher- 

 wood ; coal basins by F. Piatt. With 2 colored geological county maps (ot 

 Lycoming and Sullivan), a topographical map (in two sheets) of the Little 

 Pine creek coal basin, and 24 page plates of columnar sections. 8°, pp. 268, 



1880. Price $1 06, postage $0 14. 



G 3. Report on Potter county, by A. Sherwood. Report on its coal 

 fields, by F. Piatt. With a colored geological county map, 2 folded plates, 

 and 2 page plates of sections. 8^, pp. 121, 1880. Price $0 58, postage $0 08. 



G 4r. Report on Clinton county, by H. M. Chance ; including a descrip- 

 tion of the Renovo coal basin, by C. A. Ashburner ; and notes on the Tangas- 

 cootac coal basin, by F. Piatt. With a colored geological county map, 1 sheet 

 of sections, local Renovo map, 6 page plates, and 21 sections in the text. 8°, 

 pp. 183, 1880. Price $1 05, postage $0 12. 



G 5. Report on Susquehanna and Wayne counties, by I. C. White. 

 With a colored geological map of the two counties, and 58 cuts in the text. 

 80, pp. 243, 1881. Price $0 70, postage $0 12. 



G 6. Report on Pike and Monroe counties, by I. C. White. With two 

 colored geological county maps, (1 sheet Pike and Monroe, and 1 sheet Wyom- 

 ing,) a map of glacial scratches, and 7 small sections. Report on the Delaware 

 and Lehigh water gaps, with two contoured maps and five sections of the 

 gaps, by H. M. Chance. 8°, pp. 407, 1882. Price $1 15, postage $0 15. 



G 7. Report on Wyoming, Lackawanna, Luzerne, Columbia, Mon- 

 tour, and Northumberland counties, (i. e. the parts lying outside of the 

 anthracite coal fields,) by I. C. White. With a colored geological map of these 

 counties, (in two sheets,) and 31 page plates in the text. 8°, 464, 1883. Price 

 $0 85 and postage $0 20. (Note. — The colored geological map of Wyoming 

 county is published in G 6.) 



S. Report on the Seven mountains in Huntingdon, Union, and Snyder 

 counties, by C. E. Billin. With a colored geological contour line map of the 

 mountains (1 sheet); maps of the fossil ore outcrops, and Stone mountain 

 fault; and colored geological cross sections, (2 sheets.) 8°, pp. , 1885. 

 Price $ , postage $ . (la press.) 



T. Report on Blair county, by F. Piatt. With 35 cuts in the text, and an 

 Atlas of maps and sections, (See below.) 8°, pp. 311, 1881. Price with atlas 

 $4 55, postage §0 28. 



(T.) Atlas of colored geological contour line map of Morrison's cove, 

 Canoe valley, Sinking valley, and country west to the Cambria county line, 

 (14 sheets); Index map of the same (1 sheet): colored sections, (2 sheets.) 8°> 



1881. (Note.— The Atlas is not sold separately.) 



T 2. Report on Bedford and Fulton counties, by J. J. Stevenson. With 

 two colored geological maps of the two counties. 8°, pp. 382, 1882. Price 

 50 80, postage SO 20. 



