The Act of Incorporation and By-Laws of the Gap Mining Company of Lancaster County, Pa. To which is affixed a report of the mines by Professor Fred. A. Genth, together with an assay of the ores by him, and also by Professor M. H. Boye
Author: Gap Mining Company
All names: Boyé, Martin Hans [person] ;  Gap Mining Company [organisation] ;  Genth, Friedrich August [person]
Place of publication: Philadelphia
Publisher: Grattan & McLean
Date of publication: 1851
Physical description: 16 pages (8°)
Languages: English