Proceedingt 



163 



Atla^ 



PP. 

 P3. 



Q. 



QQQ. 

 Q4. 



R. 

 RR. 



T. 

 T2. 

 T3. 

 T4. 



V. 



VV. 

 Z 



, AC. 

 AA. 

 AA. 

 AA. 

 AA. 



Report on Wyoming, Lackawanna, Luzerne, Columbia, Mon- 

 tour and Northumberland counties (i. e , outside of the anthra- 

 cite coal fields), 1883. 

 Report on Cambria county, 1877. 

 " Somerset county, 1877. 

 " Armstrong county, 1880. 

 " Jefferson county {compare H), 1881. 

 " Clearfield county {compare H\ 1884. 

 " Oil Well records and levels, 1877. 

 " Venango,Warren, Clarion and Butler oil regions, 1880 

 " Warren county oil region, 1883. 

 First report on Fayette, Westmoreland and S. E. Alleghany 



counties, 1877. 

 Second report on Fayette and Westmoreland counties, 1878. 

 Pt. 1, report on the Monongahela river coal mines, 1884. 

 Report on the Youghiogheny coke manufacture, 1876. 

 Report of chemical analyses in 1874-5, Survey laboratory, 1875. 

 " " 1876-8, " " " 1879. 



" " " 1879-80, " " 1881. 



Catalogue of specimens collected by the Survey (1 to 4264), 1878. 



" (4265 to 8974), 1880. 

 Report on the coal flora of Pennsylvania and the United 



States, Vols. 1 and 2, 1880; Vol. 3, 1884. 

 Report on the permo-carboniferous plants, Green county. Pa., 



etc., 1880. 

 Description of Geratiocaridae and Burypteridae, 1884. 

 Report on Beaver, N.AV. Alleghany and S. Butler counties, 1878. 

 " Lawrence county and correlation of coal beds, 1879, 

 " Mercer county, 1880. 



" Crawford and Erie counties; pre-glacial outlet for 

 Lake Erie, 1881. 

 Report on McKean county, etc., 1880, 

 Pt. II, report on township geology of Cameron, Elk and Forest 



counties, 1885. 

 Report on Blair county, 1881. 



" Bedford and Fulton counties, 1882. 

 " Huntingdon county, 1885. 

 '' Centre county; with special report, etc., 1884. 

 Report on N. Butler county; Pt. 2, Beaver and Shenango river 



coal measures, 1879. 

 Report on Clarion county, 1880. 



" the terminal moraine across Pennsylvania, 1884. 



To accompany report AC. 



Of the Northern anthracite field, Pt. 1. 1885. 



" Southern anthracite field, Pt. 1, 1882. 



" Western middle anthracite field, Pt. 1, 1884. 



" Eastern middle anthracite field, Pt. 1, 1885. 



