Subject ASC0000e54
The Intellectual observer.
v.11 (1867), Page 39 (1867)
Harvard University, MCZ, Ernst Mayr Library
BHL Page 39543897
Keywords
Coal mines 1860 coal mines bituminous anthracite United States coal mining Stats of coal mines in the US ending June 1860 Coal U.S.A America United census statistics June tons black Coal Mines Rhode Island Pennsylvania Maryland Ohio Indiana Illinois Iowa Missouri Tennessee Kentucky Virginia Alabama George Washington Territory geology monetary value bituminous coal anthracite coal fossils ferns united states rhode island washington coal mine