LIST OF 



THE PUBLICATION'S 



OF THE 



Geological Survey of Pennsylvania. 



FROM 1874 TO 1889. 



ANNUAL REPORTS. 



1885 ANNUAL. J. P. Lesley, State Geologist, 8^, 769 pp., with preface and 

 index, accompanied by Atlas 8°, 8 pi., and maps, 1886, contains the fol- 

 lowing special reports : 



1. Oil and Gas. John F. Carll. 



2. Vegetable Origin of Coal. Leo Lesquereux. 



3. Pittsburg Coal Region. E. V. d'Invilliers. 



4. Wellersburg Coal Basin. J. P. Lesley and E. B. Harden. 



5. Tipton Run Coal Basin. C. A. Ashburner. 



6. Anthracite Coal Region. C. A. Ashburner. 



7. Wyoming Valley Fossils. C. A. Ashburner and A. Heilprin. 



8. Bernice Coal Basin. C. A. Ashburner. 



9. Mehoopany Coal Field. F. A. Hill. 



10. Cornwall Ore Mines. J. P. Lesley and E. V. d'Invilliers. 



11. Delaware and Chester Kaolins. J. P. Lesley and C. A. Ashburner. 



12. Quaternary Geology, Wyoming Valley. C. A. Ashburner, F. A. 



Hill, and H. C. Lewis. 



13. Pressure, <fec., of Rock Gas. J. P. Lesley. 



14. Progress Geodetic Survey. Mansfield Merriman. 



1886 ANNUALi. J. P. Lesley, State Geologist, 8^, in four parts, as follows : 



i. Pittsburgh Coal Region. E. V. d'Invilliers. 

 ii. Oil and Gas Region. J. F. Carll, F. C. Phillips, B. S. Lyman, 

 iii. Anthracite Coal Region with Atlas. F. A. Hill, 

 iv. 1. The Lehigh River Cross Section. Arthur Winslow. 



2. Paint Ores along the Lehigh River. F. A. Hill. 



3. Iron Ore Mines and Limestone Quarries of the Cumberland- 



Lebanon Valley. E. V. d'Invilliers. 



4. Geology of Radnor township, Delaware co., &c. T. D. Rand. 



With an Atlas. 



