English

Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States ..

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] · Paged continuously · 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 · "Literature of the U.S. coal flora": v. 2, p. 685-694

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