Charter and by-laws of the New Jersey Slate-Mining and Manufacturing Company; : at Delaware Water-Gap, Warren County. Together with a geological report, testimonials, etc

Published 1858

Geological and mineralogical report upon an extensive land property, belonging to Browning Brothers, of Philadelphia, and others, situated in the counties of Sussex and Warren, New...

Published 1867

Slate in Pennsylvania

Author: Behre, Chas. H.
Published 1933

Slate in Northampton County, Pennsylvania

Author: Behre, Chas. H.
Published 1927

[Genuine Bangor Slate Company]

Published 1907