Proceedings of the Pennsylvania Academy of Science
Author : Pennsylvania Academy of Science
Publisher :
Page : 644 pages
File Size : 47,62 MB
Release : 1926
Category : Science
ISBN :
Author : Pennsylvania Academy of Science
Publisher :
Page : 644 pages
File Size : 47,62 MB
Release : 1926
Category : Science
ISBN :
Author :
Publisher :
Page : 570 pages
File Size : 47,61 MB
Release : 1922
Category : Mines and mineral resources
ISBN :
Author :
Publisher :
Page : 942 pages
File Size : 50,88 MB
Release : 1922
Category :
ISBN :
Author :
Publisher :
Page : 622 pages
File Size : 15,79 MB
Release : 1922
Category : Mineral industries
ISBN :
Author : Harold Jandorf Sloman
Publisher :
Page : 68 pages
File Size : 29,95 MB
Release : 1922
Category : Coal
ISBN :
Author : Clyde Polhemus Ross
Publisher :
Page : 1170 pages
File Size : 42,78 MB
Release : 1934
Category : Geology
ISBN :
Author :
Publisher :
Page : 1084 pages
File Size : 12,16 MB
Release : 1944
Category : Geology
ISBN :
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
Author : United States. Bureau of Mines. Technical Library, Pittsburgh
Publisher :
Page : 778 pages
File Size : 29,16 MB
Release : 1968
Category : Library catalogs
ISBN :
Author : Gettysburg (Pa.) Theological Seminary of the General Synod of the Evangelical Lutheran Church in the U.S.
Publisher :
Page : 2000 pages
File Size : 47,97 MB
Release : 1931
Category : Mineral industries
ISBN :
Author : Charles Butts
Publisher :
Page : 1042 pages
File Size : 19,1 MB
Release : 1934
Category : Coal
ISBN :