Author : Geological Survey of Pennsylvania
Publisher :
Page : 532 pages
File Size : 24,36 MB
Release : 1880
Category : Coal mines and mining
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 856 pages
File Size : 19,54 MB
Release : 1886
Category : Coal mines and mining
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 346 pages
File Size : 25,68 MB
Release : 1887
Category : Coal mines and mining
ISBN :
Author : Pennsylvania. Geological Survey (2d, 1874-1890)
Publisher :
Page : 0 pages
File Size : 21,42 MB
Release :
Category : Coal mines and mining
ISBN :
Author : Pennsylvania. Geological Survey
Publisher :
Page : 868 pages
File Size : 35,54 MB
Release : 1886
Category : Coal mines and mining
ISBN :
Author : Geological Survey (U.S.)
Publisher :
Page : 650 pages
File Size : 46,86 MB
Release : 1889
Category : Forest reserves
ISBN :
Author : Frederick Prime
Publisher :
Page : 84 pages
File Size : 27,37 MB
Release : 1879
Category : Geology
ISBN :
Author :
Publisher :
Page : 62 pages
File Size : 47,51 MB
Release : 1971
Category : Geology
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 144 pages
File Size : 28,8 MB
Release : 1889
Category : Coal mines and mining
ISBN :
Includes 3 atlases of fold. plates, fold. maps, fold. tab. which accompany 1885; 1886, pts. 3-4.
Author : Geological Survey of Pennsylvania
Publisher :
Page : 686 pages
File Size : 37,66 MB
Release : 1836
Category : Geology
ISBN :
