Second Geological Survey of Pennsylvania. 



REPORTS FOR 1874, 1875, 1876, 1877, 1878, 1879, AND 1880. 



The following Reports are issued for the State by the Board of Commis- 

 sioners, at Harrisburg, and the prices have been fixed as follows, in accord- 

 ance with the terms of the act : 



PRICES OF REPORTS. 



A. Historical Sketch of Geological Explorations in Pennsylvania 

 and other States. By J. P. Lesley. With appendix, containing Annual 

 Reports for 1874 and 1875 ; pp. 226, 8vo. Price in paper, $0 25 ; postage, SO 06. 

 Price in cloth, SO 50; postage, SO 10. 



B. Preliminary Report of the Mineralogy of Pennsylvania — 



1874. By Dr. F. A. Genth. With appendix on the hydro-carbon compounds, 

 by Samuel P. Sadtler. 8vo., pp. 206, with mup of the State for reference to 

 counties. Price in paper, SO 50 ; postage, SO 08. Price in cloth, SO 75 ; post- 

 age, SO 10. 



B. 8 Preliminary Report of the Mineralogy of Pennsylvania for 



1875. By Dr. F. A. Genth. Price in paper, SO 05 ; postage, SO 02. 



C. Report of Progress on York and Adams Counties — 1874. By 

 Persifor Frazer. 8vo., pp. 198, illustrated by 8 maps and sections and other 

 illustrations. Price in paper, SO S5 : postage, SO 10. Price in cloth, SI 10; 

 postage, SO 12. 



CC. Report of Progress in the Counties of York, Adams, Cumber- 

 land, and Franklin — 1875. Illustrated by maps and cross-sections, show- 

 ing the Magnetic and Micaceous Ore Belt near the western edge of the Meso- 

 zoic Sandstone and the two Azoic systems constituting the mass of the South 

 Mountains, with a preliminary discussion on the Dillsburg Ore Bed and 

 catalogue of specimens collected in 1875. By Persifor Frazer. Price, SI 25 ; 

 postage, SO 12. 



CCC. Report of Progress in 1877. The Geology of Lancaster County, 

 with an atlas containing a colored geological map of the county, local map of 

 the Gap Nickel Mine, map and sections of the East Bank of Susquehanna 

 River ; other geological sections across the county, and geological colored maps 

 of York and Lancaster counties. By Persifor Frazer. 8 vo., pp. 350. Price 

 of Report, SO 89 ; postage, SO 16. Price of Atlas, SI 32 : postage, SO 08. 



D. Report of Progress in the Brown Hematite Ore Ranges of Le- 

 high County— 1874, with descriptions of mines lying between Emaus, Al- 

 burtis, and Foglesville. By Frederick Prime, Jr. 8vo., pp. 73, with a contour- 

 line map and 8 cuts. Price in paper, SO 50 ; postage, SO 04. Price in cloth, 

 $0 75 ; postage, SO 06. 



DD. The Brown Hematite Deposits of the Siluro-Cambrian Lime- 

 stones of Lehigh County, lying between Shiniersvilk-, Millerstown, 



(1) 



