Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States ...
Report of progress (Geological Survey of Pennsylvania), P
Lesquereux, Léo, 1806-1889
Geological Survey of Pennsylvania.
Pennsylvania. Board of Commissioners for the Second Geological Survey.
Harrisburg, Board of Commissioners for the Second Geological Survey, 1879-84
Contents: I. Cellular cryptogamous plants, Fungi, thalassophytea. Vascular cryptogamous plants, Calamariæ, Filicacæ (ferns) 1880.--II. Lycopodiaceæ. Sigillariæ. Gymnosperms. 1880.--III. [Additions and corrections of the first and second volumes with plates additional to atlas]
Vol. I has half-title: Coal flora of Pennsylvania.
Atlas has title: Atlas to the coal flora of Pennsylvania and of the Carboniferous formation throughout the United States ... 1879.
QE157 .A16 P
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