590 REPORT ON NATIONAL MUSEUM, 1886. 



Sandstone. Carboniferous; fine; gray, dark streaked. Lucesco, Westmoreland 

 County. J. A. Huffman's quarry. Tenth Census, 1680. 25903. 



Carboniferous; fine; bluish gray. Deny Station, Westmoreland County. 



Loyalhanna Coal and Coke Company. Tenth Census, 1880. 25913. 



Carboniferous; buff; medium . Derry Station, Westmoreland Counjy. J. C. 



Campbell's quarry. Tenth Census, 1880. 25914. 



Carboniferous; fine; brown and brown with yellow bauds. Two specimens. 



Scottdale, Westmoreland County. S. Dnnmire's quarry. Tenth Census, 

 1680. 25985. 



Carboniferous; coarse; buff. Near Uniontown, Fayette County. J. Fraser's 



quarry. Tenth Census, 1880. 25990. 



Sub-Carboniferous; line; light colored. Near Uuioutown, Fayette County. 



D. Shipley's quarry. Tenth Census, 1880. 25991. 

 Sub-Carboniferous; fine; light reddish gray. Near Uuioutown, Fayette County. 



D. Shipley's quarry. Tenth Census, 1880. 25992. 

 Carboniferous; line; light colored. Near Connellsville, Fayette County. 



Speer White & Co. Tenth Census, 1880. 2(5059. 



Carboniferous; medium; light colored. Connellsville, Fayette County. C. 



Shibley's quarry. Tenth Census, 1680. 25984. 



Carboniferous; fine; light colored. Layton's Station, Fayette County. Speer 



White & Co. Tenth Census, 1880. 20000. 



Carboniferous; fine ; light colored. Fayette Station, Fayette; County. QuaAy 



of Porter Bros. Tenth Census, 1880. 2000 1. 



Carboniferous; fine ; light drab. Somerset, Somerset County. J. McAdam's 



quarry. Tenth Census, 1880. 26109. 



Triassic; fine; brown. Used for general building. Goldsborough. York Conn :f t , 



Hummelstown Brownstone Company. Tenth Census, 1880. 25265. 



Triassic; reddish brown. Used as above. Near Hummejstown, Dauphin 



County. Hummelstown Brownstone Company. Tenth Census, 1880. 25200. 



Triassic; One; brown. Near Goldsborough, York County. F. KeilingV quarry. 



Tenth Census, 1880. 20283. 



Argillaceous sandstone. Carboniferous; fine; gray. Stoops Ferry, Allegheny 

 County. U. S. Government quarry. Tenth Census, 1880. 25342. 



Conglomerate. Devonian; coarse: light colored. Pottsville, Schuykill County. 

 Tenth Census, 1880. 27040. 



Potsdam; coarse; friable. Friedensburg, Berks County. Clyjuer quarry 



Tenth Census, 1880. 20408. 



Potsdam; pinkish gray; compact. Near Pikeville, Berks County. G. M. 



Keim's quarry. Tenth Census, 1880. 2040?). 



Sub-Carboniferous; gray; compact. Pottsville, Schuylkill County. Tenth 



Census, 1880. 25782. 

 Quartzite. Devonian; fine; light colored. Near Altoona, Blair County. Quarry 

 of Booth & Mackey. Tenth Census, 1880. 20147. 



Potsdam; light colored; compact and hard. Jackson w aid, Berks County. 



Tenth Census, 1880. 20473. 



Upper Silurian; very light colored; compact and hard. Near Huntingdon, 



Huntingdon County. S. P. Wensel's quarry. Tenth Census, 1880. 20203. 



Sandstone (nearly quartzite). Carboniferous; blue-gray; very compact and hard. 

 Near Shickshinny, Luzerne County. Delaware, Lackawanna and Western Kail- 

 road quarry. Tenth Census, 1880. 25923. 



Slate. Lower Silurian (Hudson River). Blue-black. Slatington, Lehigh County. 

 Quarry of D. Williams. Tenth Census, 1880. 25740. 



