584 REPORT ON NATIONAL MUSEUM, 1886. 



Limestone. Dark bine-gray ; fine and compact. Mertztowri, Berks Comity. Amer- 

 ican Society Mining Engineers, 1886. 37879. 



Lower Silurian ; dark blue-gray. Wernersville, Berks County. American So- 



ciety Mining Engineers, 1886. 37861. 



Lower Silurian ; dark blue-gray. Wernersville, Berks County. American So- 



ciety Mining Engineers, 1886. 37855. 



Lower Silurian; water-blue, dark veined. Wernersville, Berks County. Ameri- 



can Society Mining Engineers, lr*86. 37854. 



Lower Silurian; fine; blue gray. Myerstown, Lebanon County. American 



Society Mining Engineers, 1886. 37864. 



Lower Silurian ; Myerstown, Lebanon County. American Society Mining En- 



gineers, 1886. 37863. 



Lower Silurian ; dark blue-gray. North of Annville, Lebanon Connty. Ameri- 



can Society Mining Engineers, 1886. 37867. 

 Lower Silurian ; dark blue gray. Palmyra, Lebanon County. American Soci- 

 ety Mining Engineers, 1886. 37871. 



Lower Silurian ; blue-gray, white spotted. North of Annville, Lebanon Connty. 



American Society Mining Engineers. 1886. 37882. 



Lower Silurian; dark blue-gray. North of Annville, Lebanon County. Ameri- 



can Society Mining Engineers, 1886. 37887. 



Lower Silurian; blue-gray. Richland Station, Lebanon County. American 



Society Mining Engineers, 1886. 37874. 



Lower Silurian ; water-blue; crystalline. Richland Station, Lebanon Connty. 



American Society Mining Engineers, 1886. 37865. 



Lower Silurian ; blue-gray; crystalline. Richland Station, Lebanon County. 



American Society Mining Engineers, 1886. 37866. 



Lower Silurian; dark blue-gray. Ilarrisburg, Danphin County. American 



Society Mining Engineers, 1886. 37878. 



Lower Silurian ; dark blue-gray, nearly black ; fine and compact. Near ilar- 



risburg, Dauphin County. J. A. Rutherford's quarry. Tenth Census, 1880. 

 25328. 



Lower Silurian ; blue. Hummelstown, Dauphin County. American Society 



Mining Engineers, 1886. 37883. 



Lower Silurian; dark blue-gray, nearly black. Paxton Station, Dauphin 



County. American Society Mining Engineers, 1886. 37870. 



Lower Silurian; nearly black; fine and compact. Near York, York County. 



C. F. Winters's quarry. Tenth Census, 1880. 26237. 



Lower Silurian ; dark gray, nearly black ; fine and compact. Chambersbnrgli, 



Franklin County. Henry Lippy's quarry. Tenth Census, 1880. 26312. 



Sub- Carboniferous; light gray ; granular. Connellsville, Fayette County. A 



R. Banning's quarry. Tenth Census, 1880. 26058. 



Devonian; very dark drab ; fine and compact. Near Huntingdon, Huntingdon 



County. F. Hefrigkt's quarry. Tenth Census, 1880. 26170. 



Very dark gray; fine and compact. Near Spruce Creek, Huntingdon County. 



Robert Henderson's quarry. Tenth Census, 1880. 26235. 



Lower Silurian; water-blue; crystalline. Howellsville, Delaware County. 



American Society Mining Engineers, 18«6. 37869. 



Lower Silurian ; nearly white ; crystalline. Howellsville, Delaware County. 



American Society Mining Engineers, 1886. 37853. 



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



ciety Mining Engineers, 1886. 37858. 



