. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 111., vol. 6, 1875, page 452, plate 18, figs. 4a, side view of frag- ment of fish spine, restored; J, front view; (?, (^, cross sections; ha side of a more compressed specimen; 5, c, cross sections. Burlington, Iowa; Upper fish bed in the Einderhook limestone. XL Physonemus chesterensis, St. John & Worthen, Geo. Sur. 111., vol. 6, 1875, page 455, plate 19, figs. 4^, enlarged X ^, side view of fish spine, with cross section natural size; h, X^, front view;

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. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 111., vol. 6, 1875, page 452, plate 18, figs. 4a, side view of frag- ment of fish spine, restored; J, front view; (?, (^, cross sections; ha side of a more compressed specimen; 5, c, cross sections. Burlington, Iowa; Upper fish bed in the Einderhook limestone. XL Physonemus chesterensis, St. John & Worthen, Geo. Sur. 111., vol. 6, 1875, page 455, plate 19, figs. 4^, enlarged X ^, side view of fish spine, with cross section natural size; h, X^, front view; c?, d^ e. X^, cross sections. Chester 111. Chester limestone (upper division of the sub- conglomerate limestones.) XL Physonemus depressus, St. John & Worthen, Geo. 4C. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for the Geological Survey

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea