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Notes on amphibians from Rockingham County, Virginia
Vol 28, Page 1
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New Silurian Scolecodonts from the Albion beds of the Niagara gorge, New York
Vol 28, Page 9
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Pleistocene fossils from the Belcher Islands in Hudson Bay
Vol 28, Page 47
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Geographical distribution of the recent Mollusca of Newfoundland
Vol 28, Page 53
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Notes on the reproduction of the Northern Copperhead, Agkistrodon mokasen cupreus (Rafinesque), in Pennsylvania
Vol 28, Page 77
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Changes in Bird-life at Pymatuning Lake, Pennsylvania
Vol 28, Page 83
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Belinurus carferi, a new Xiphosuran from the Upper Devonian of Pennsylvania
Vol 28, Page 133
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A new gopher frog from the Gulf Coast, with comments upon the Rana areolata group
Vol 28, Page 137
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Birds recorded in the State of Hidalgo, Mexico, by the Semple expe-dition of 1939
Vol 28, Page 169
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A new species of Cymothales (Myrmeleonidae)
Vol 28, Page 187
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An archaeological collection from the Belcher Islands in Hudson Bay
Vol 28, Page 189
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A new Crocodilian, Hassiacosuchus kayi, from the Bridger Eocene beds of Wyoming
Vol 28, Page 207
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A review of the Pileate Polypores of western Pennsylvania
Vol 28, Page 221
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The paleogeography of the eastern part of the Uinta Basin during Uinta B (Eocene) time
Vol 28, Page 273
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Some new and undescribed Jamaican butterflies
Vol 28, Page 309
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Scolecodonts from the Windora, Middle Devonian of western New York
Vol 28, Page 323
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The Birds of tho Uinta basin, Utah
Vol 28, Page 341