Geological Survey of Pennsylvania
Author : Geological Survey of Pennsylvania
Publisher :
Page : 12 pages
File Size : 46,59 MB
Release : 1873
Category : Geology
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 12 pages
File Size : 46,59 MB
Release : 1873
Category : Geology
ISBN :
Author :
Publisher :
Page : 17 pages
File Size : 22,45 MB
Release : 1874
Category : Geology
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 716 pages
File Size : 22,70 MB
Release : 1858
Category : Coal
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 532 pages
File Size : 32,10 MB
Release : 1880
Category : Coal mines and mining
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 856 pages
File Size : 30,42 MB
Release : 1886
Category : Coal mines and mining
ISBN :
Author : Geological Survey of Pennsylvania
Publisher :
Page : 346 pages
File Size : 44,90 MB
Release : 1887
Category : Coal mines and mining
ISBN :
Author : Bradford B. VanDiver
Publisher :
Page : 420 pages
File Size : 49,98 MB
Release : 1985
Category : Science
ISBN :
Maps, cross-sections, diagrams, photos, and text describe the geologic foundations of the state of New York.
Author :
Publisher :
Page : 170 pages
File Size : 47,69 MB
Release : 1911
Category :
ISBN :
Author : Pennsylvania. Geological Survey
Publisher :
Page : 868 pages
File Size : 31,7 MB
Release : 1886
Category : Coal mines and mining
ISBN :
Author : Pennsylvania. State Geologist (1874-1890)
Publisher :
Page : pages
File Size : 15,95 MB
Release : 1892
Category : Coal
ISBN :