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The Gerrhonotus of the San Lucan fauna, Lower California, with diagnoses of other west American species
Volume 1898, Page 63
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Anatomical Notes on Certain West American Helices
Volume 50, Page 67
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Contributions to a Knowledge of the Hymenoptera of Brazil, No. 4: Thynninæ and Additions
Volume 50, Page 72
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The Petrifaction of Fossil Bones
Volume 50, Page 98
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Notes on Alaskan Water Birds
Volume 50, Page 126
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Odonata (Dragonflies) from the Indian Ocean, and from Kashmir, collected by Dr. W.L. Abbott
Volume 1898, Page 141
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March 22
Volume 50, Page 155
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May 10
Volume 50, Page 262
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Materials toward a Natural Classification of the Cylindrelloid Snails
Volume 50, Page 264
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Notes on Mr. Thomas Meehan's Paper on the Plants of Lewis and Clark's Expedition across the Continent, 1804-06
Volume 50, Page 291
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Descriptions of Five New Phyllostome Bats
Volume 50, Page 326
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July 5
Volume 50, Page 351
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Description of a New Genus and Species of Microtine Rodent from Siberia
Volume 50, Page 368
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Botanical Observations on the Mexican Flora, Especially on the Flora of the Valley of Mexico
Volume 50, Page 372
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Fossil Mollusks and Diatoms from the Dismal Swamp, Virginia and North Carolina; Indication of the Geological Age of the Deposit. With Notes on the Diatoms
Volume 50, Page 414
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September 27
Volume 50, Page 429
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Contributions to a Knowledge of the Hymenoptera of Brazil, No. 5: Vespidæ
Volume 50, Page 445
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New Cretaceous Fossils from an Artesian Well-Boring at Mount Laurel, N. J
Volume 50, Page 461
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A Memorial of Dr. Joseph Leidy
Volume 50, Page 465
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November 1
Volume 50, Page 479
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Occurrence of Oryzomys palustris in Southern New Jersey
Volume 50, Page 480
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The Occurrence of Marcasite in the Raritan Formation
Volume 50, Page 485
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Report of the Recording Secretary
Volume 50, Page 500
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Report of the Librarian
Volume 50, Page 505
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Report of the Biological and Microscopical Section
Volume 50, Page 512
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Report of the Entomological Section
Volume 50, Page 514
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Report of the Botanical Section
Volume 50, Page 515
