... Key to the upper Devonian of southern New York : designed for teachers and students in secondary schools Harris, Gilbert D. (Gilbert Dennison), 1864-1952 creator text book Ithaca Harris [1899] 1899
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ENG Some plates printed on both sides. Devonian Geology Geology, Stratigraphic New York (State) Paleontology QE665 .H37 Elementary natural history series, no. 2 https://www.biodiversitylibrary.org/bibliography/62943 123193103 10.5962/bhl.title.62943 NIC