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Notes on orchids new to Florida
Volume 19, Page 1
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Some observations concerning the American families of oligomyodian passeres
Volume 19, Page 7
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A new Botrychium from Alabama
Volume 19, Page 23
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Two new carnivores from the Malay Peninsula
Volume 19, Page 25
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Plantae montrosensis
Volume 19, Page 35
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The specific name of the hawk owls
Volume 19, Page 42
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The names of the passenger pigeon and the mourning dove
Volume 19, Page 43
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A bear animalcule renamed
Volume 19, Page 46
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Descriptions of an apparently new species of monkey of the genus Presbytis from Sumatra, and of a bat of the genus Dermanura from Mexico
Volume 19, Page 49
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The pigmy squirrels of the Nannosciurus melanotis group
Volume 19, Page 51
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A new white-footed mouse from Texas
Volume 19, Page 57
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A new genus of sac-winged bats
Volume 19, Page 59
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Seven new Malayan bats
Volume 19, Page 61
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The status of the generic name Hemiprocne Nitzsch
Volume 19, Page 67
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A new vole from Montague Island, Alaska
Volume 19, Page 71
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Notes on a collection of fishes from the island of Mindanao, Philippine Archipelago, with descriptions of new genera and species
Volume 19, Page 73
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Twelve new genera of bats
Volume 19, Page 83
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Identity of Eutamias pallidus (Allen), with a description of a related form from the South Dakota Bad Lands
Volume 19, Page 87
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Description of a new Querquedula
Volume 19, Page 93
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Descriptions of three new mangrove crabs from Costa Rica
Volume 19, Page 99
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Notes on birds from Costa Rica and Chiriqui, with descriptions of new forms and new records for Costa Rica
Volume 19, Page 101
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Descriptions of some new forms of oligomyodian birds
Volume 19, Page 115
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Notes on the mammals of Grand Manan, N. B. with a description of a new subspecies of white-footed mouse
Volume 19, Page 121
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Revision of the genus Wislizenia
Volume 19, Page 127
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Diagnoses of new species of mosquitoes
Volume 19, Page 133
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Descriptions of new species oiAcoridium from the Philippines
Volume 19, Page 143
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New plants from the Great Basin
Volume 19, Page 155
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Notes on some American mosquitoes with descriptions of new species
Volume 19, Page 159
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Notes on some tortricid genera with descriptions of new American species
Volume 19, Page 173
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Notes on the genera of Paniceae. I
Volume 19, Page 183
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West American Mitridae-north of Cape St. Lucas, Lower California
Volume 19, Page 193
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A list of the mammals, reptiles and batrachians of Monroe County, Indiana
Volume 20, Page 1
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A new flying squirrel from the island of Terutau, west coast of Malay Peninsula
Volume 20, Page 17
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Four new pocket mice
Volume 20, Page 19
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Some uru-ecorded Colorado mammals
Volume 20, Page 23
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A new race of the hepatic tanager
Volume 20, Page 29
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An owl, Rhinoptynx clamator (Vieill.), added to the Costa Rican ornis
Volume 20, Page 31
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Some new western plants and their collectors
Volume 20, Page 33
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Description of a new Otocoris from Lower California
Volume 20, Page 41
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Some unrecognized and misapplied names of American mammals
Volume 20, Page 43
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A new race of the mangrove cuckoo, from Grenada and the Grenadines
Volume 20, Page 53
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A new Spiny-tail from the Sierra Nevada de Santa Marta, Colombia
Volume 20, Page 55
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A new South American bat
Volume 20, Page 57
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A collection of mammals from the region of Mount McKinley, Alaska
Volume 20, Page 59
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A new name for the genus Rhynchonycteris Peters
Volume 20, Page 65
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On the composition and decomposition of fresh water mussel shells with notes and queries
Volume 20, Page 67
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Notes on the mammals of southwestern Missouri
Volume 20, Page 71
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Descriptions of ten new kangaroo rats
Volume 20, Page 75
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Descriptions of new North American rabbits
Volume 20, Page 81
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A Colorado record for Callospermophilus wortmani, v/ith notes on the recent capture of Antrozous pallidus
Volume 20, Page 85
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Descriptions of two new subspecies of North American mammals
Volume 20, Page 87