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acuminate Alethopteris apex base basilar bipinnate bolsters borders branches Brgt Brongniart Cannelton Carboniferous Cardiocarpus centimeters broad characters coal beds coal measures connate Cordaites curved Cyclopteris decorticated decurring described dichotomous distant distinct distinctly divisions enlarged epidermis Ferns Figs figured five millimeters flattened forking once former species foss fragments Frond fructifications Gein genus GeoI Geol Goepp Halonia Hutt inflated inside scars lanceolate lateral veins leaf scars leaflets leaves Lepidodendron Lepidophloios Lepidostrobus Lesqx linear lobes lower mamilla marked Mazon Creek medial nerve middle midrib millimeters broad millimeters long narrow nervation Neuropteris oblique oblong obtuse Ohio oval ovate Paleont Pecopteris pedicel Penn'a pinna pinnules Pittston plants point of attachment Prof rachis referable represent Rept rhomboidal ribs right angle Schimper Schp seen shale Sigillaria slightly smooth specimens Sphenopteris sporanges stem striate strobiles surface thick thin truncate tubercles undulate upper vascular scars Veget venation Verst
Page 690 - On the Vegetation of the Carboniferous Period as compared with that of the present day," published in 1848, was an important contribution to the science.
Page iv - Susquehanna and Wayne counties. JF CARLL — Geologist in charge of the Survey of the Oil Regions. HM CHANCE — Geologist to report on the Mining of the Anthracite coal fields. CA ASHBURNER — Geologist to report on the Geology of the Anthracite coal fields.