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January 20
Volume 66, Page 1
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A study of the species of the genus Dichopetala (Orthoptera, Tettigoniidae)
Volume 66, Page 64
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Mimicry in North American Butterflies: A Reply
Volume 66, Page 161
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Fresh-Water Mollusks of the Oligocene of Antigua
Volume 66, Page 209
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A New Diatom
Volume 66, Page 219
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Fishes from the Rupununi River, British Guiana
Volume 66, Page 229
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Contribution to the Anatomy of the Ilysiidæ
Volume 66, Page 285
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Description of a New Blenny from New Jersey, with Notes on Other Fishes from the Middle Atlantic States
Volume 66, Page 342
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Fishes collected by the Peary Relief Expedition of 1899
Volume 66, Page 359
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Montana Shells
Volume 66, Page 367
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On the Orthoptera found on the Florida Keys & in extreme southern Florida. II
Volume 66, Page 373
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The Vascular System of the Florida Alligator
Volume 66, Page 413
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The Evolution of Sarcocystis Muris in the Intestinal Cells of the Mouse. (Preliminary Note)
Volume 66, Page 432
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Further Notes on Meteor Crater, Arizona
Volume 66, Page 556
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Morphologic Sequences in the Canaliculate Fulgurs
Volume 66, Page 567
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New or little-known craneflies from the United States and Canada. Tipulidae, Diptera
Volume 66, Page 579
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New neuropteroid insects native and exotic
Volume 66, Page 608
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December 15
Volume 66, Page 633
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Report of the Corresponding Secretary
Volume 66, Page 650
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Standing Committees
Volume 66, Page 668
