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Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States Plate LXVII . Second eoISi ir PeiinsylvMnia esquereiix ' ' Repoi't of Progress Coal Flora of Plalc LXVI Nl ' ' xi ' Ni si vi Ni vi Vt' si WAT Kirklv Jiitric Hart Sl ain PriiiteT Plate LXVII Illustration biodiversitylibrary