1883.] ^^^ [Lesley. 



Perry. Surveyed in 1877 bj' J. H. Dewees. Surveyed again in 1882 

 by E. W. Claypole. Report to be published in 188d.—Mte. The delay 

 in publishing the report of 1877 was occasioned by the necessity for com- 

 pletely rewriting it. See Juniata. 



Philadelphia. Surveyed in 1879, 1880. See Report C G (1881). 



Pike. Surveyed in 1881 by I. C. White. See Report on Pike and 

 Monroe, G G (1882). 



Potter. Surveyed in 1876 by A. Sherwood. Resurveyed in 1879 by 

 F. Piatt. See Report G 3 (1880) . 



Schuylkill. Anthracite survey commenced in 1881 by C. A. Ash- 

 burner and corps, continued through 1882 and onwards. Eastern sheets 

 of Western Middle coal-field now in press ; western sheets in preparation. 

 Special report on each division to accompany the sheets. In 1884 the 

 survey of the Southern coal-field from Tamaqua westward will be com- 

 menced. See Carbon county. 



Snyder. Surveyed in 1876, 1877 by J. H. Dewees. See Report on 

 Juniata District, F (1878). Surveyed again in 1878 by C. E. Billin, for 

 map. Further field work before a county report can be published. 



Somerset. Surveyed in 1879 by G. W. Piatt. Report H 3 (1877). 



Sullivan. Surveyed in 1877 by A. Sherwood, and uL^ain in 1878-'79 

 by F. Piatt. See Report on Lycoming and Sullivan, G 2 (1880). The 

 Coal basins will be resurveyed as part of the Anthracite survey. 



Susquehanna. Surveyed in 1880 by I. C. White. See Report on 

 Susquehannah and Wayne, G 5 (1881). 



Tioga. Surveyed in 1874 by A. Sherwood, and in 1877 by F. Piatt. 

 See Report on Bradford and Tioga, G (1878). See Note on Bradford. 



Union. Surveyed in 1878 by C. E. Billin for map. Requires much 

 field work before report can be published. 



Venango. Surveyed in 1874 and onwards by J. F. Carll. See Re- 

 ports on the Oil regions I (1875), I 2 (1877), I 3 (1880) and I 4 (1883 

 just being issued). 



Warren. Surveyed in 1874 and onwards, especially in 1882, by J. F. 

 Carll. See Report on Warren county, I 4 (1883 just issuing from the 

 press). N'ote. — The long delay in reporting upon this county was occa- 

 sioned by the abundance of its fossils ; the extreme difficulty of establish- 

 ing the correct order of its rocks ; and the continued oil discoveries. 



