BUILDING AND ORNAMENTAL STONES, 585 



Limestone. Lower Silurian ; dark bine-gray. Lebanon, Allegheny County. Amer- 

 ican Society Mining Engineers, 1886. 37859. 



Lower Silurian ; dark blue-gray. Lebanon, Allegheny County. American So- 



ciety Mining Engineers, 1886. 37860. 



Lower Silurian ; dark blue-gray. Schuylkill Haven, Schuylkill County 



American Society Mining Engineers, 1886. 37872. 

 Calcareous dolomite. Lower Silurian ; gray ; granular. Two specimens. Near 

 Columbia, Lancaster County. C. S. Kauffman's quarry. Tenth Census, 1880. 

 26331. 



Lower Silurian; nearly black; pyritiferous. Leamon Place Station, Lancaster 



County. J. Young's quarry. Tenth Census, 1880. 25666. 

 Lower Silurian ; dark ; nearly black. Reading, Berks County. John H. Stern- 

 burg's quarry. Tenth Census, 1880. 264:57. 



Lower Silurian. Wrightsville, York County. Quarry of Kerr, Weitzel & Co. 



Tenth Census, 1880. 26332. 



Lower Silurian; dark gray; nearly black ; tine and compact. Carlisle, Cum- 



berland County. W. F. Noble's quarry. Tenth Census, 1880. 26302. 



Lower Silurian; gray; coarsely laminated. Near Shiremanstown, Cumberland 



County. Quarry of Moses & Sidle. Tenth Census, 1880. 26301. 

 Dolomite. Lower Silurian; black; tine and compact. Easton, Northampton County. 

 Quarry of George &. Isaao A. Smith. Tenth Census, 1880. 25767. 



Lower Silurian; yellowish. Two specimens. Flourtown, Montgomery County. 



American Society Mining Engineers, 1886. 37876. 



Lower Silurian ; light yellow, blue spotted. Flourtown, Montgomery County. 



• American Society Mining Engineers, 1886. 37884. 



Lower Silurian ; bluish drab; compact. Philadelphia and Reading Railroad, 



Chester Valley Branch, Mclnnes Siding, Chester County. American Society 

 Mining Engineers, 1886. 37857. 



Lower Silurian ; light colored. Mill Lane, Chester County. American Society 



Mining Engineers, 1886. 37868. 



Lower Silurian ; blue mottled. Near Pott's Landing, Berks County. Ameri- 

 can Society Mining Engineers, 1886. 37856. 



— -- Lower Silurian; Light yellow; tine and compact. Williams Station, Berks 

 County. American Society Mining Engineers, 1886. 37886. 



Lower Silurian ; dark blue-gray ; fine and compact. Near Lancaster, Lancas- 

 ter County. West-man's quarry. Tenth Census, 1880. 26374. 



Lower Silurian ; dark blue-gray ; tine and compact. Near Harrisburg, Dau- 

 phin County. Quarry of McCormick & Co. Tenth Census, 1880. 26281. 



Lower Silurian ; dark gray ; fine and compact. Near Orbisonia, Huntingdon 



County. Quarry of D. Grove & Son. Tenth Census, 1880. 26204. 



Lower Silurian; tine; light yellow. Kerborburgh. American Society Min 



ing Engineers, 1886. 37877. 



Lower Silurian ; light drab. Plymouth, Luzerne County. American Society 



Mining Engineers, 1886. 37880. 



Lower Silurian; light colored: crystalline. Cedar Hollow, Lime County. 



American Society Mining Engineers, 1886. 37885 

 Limestone [ marble]. Lower Silurian ; nearly white; finegrained; compact. Mor 



ristown, Montgomery County Centennial, 1876. 17573. 

 Lower Silurian: light gray : crystalline. Two specimens. Near Spring Mill 



Station, Montgomery County Cedar Grove Marble Works. Tenth Census, 



1880 25356 



