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New names in Quercus and Osmanthus
Vol 33, Page 8
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Notes on American Euphorbiaceae, with descriptions of eleven new species
Vol 33, Page 11
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Antagonism and paraaitiam among some Oomycetes associated with root rot
Vol 33, Page 21
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A redescription of Typhlonema salomonis Kreis (Nematoda)
Vol 33, Page 28
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Two new Birds from Morelos, Mexico
Vol 33, Page 33
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New genera and species of Neotropical bark beetles (Coleoptera, Scolytidae)
Vol 33, Page 34
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New species of syrphid flies in the National Museum
Vol 33, Page 39
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North American monogenetic trematodes. VI. The family Diclidophoridae (Diclidophoroidea)
Vol 33, Page 44
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Notes on Mexican urocoptid mollusks
Vol 33, Page 54
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Two marine fishes new to the fauna of Alaska, with notes on another species
Vol 33, Page 59
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Four new species of Acanthaceae from Guatemala
Vol 33, Page 70
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Some undescribed species of flies of the genus Baccha (Syrphidae)
Vol 33, Page 72
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A new trichostrongylid nematode from the stomach of American squirrels
Vol 33, Page 75
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Observations on the route of migration of the common liver fluke, Fasciola hepatica, in the definitive host
Vol 33, Page 79
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Pycnogonida of the Bartlett Collections
Vol 33, Page 83
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Notes on the affinity, anatomy, and development of Elops saurus Linnaeus
Vol 33, Page 90
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Toxicity of some dinitrophenols to the American dog tick, Dermacentor variabilis (Say)
Vol 33, Page 97
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Synoptic revision of the testaceipennis group of the beetle genus Phyllophaga
Vol 33, Page 106
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Homonyms among trees and fossil plants
Vol 33, Page 130
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New grasses from the Philippines and South India
Vol 33, Page 135
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Description of a third form of Curassov of the genus Pauxi
Vol 33, Page 142
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The systematic status of certain pocket gophers, with special reference to Thomomys monti-cola
Vol 33, Page 146
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The osteology and relationships of the bathypelagic fishes of the genus Bathylagus Giinther with notes on the systematic position of Leuroglossus stil-bius Gilbert and Therobromus callorhinus Lucas
Vol 33, Page 147
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Progress in utilization standards for western ranges
Vol 33, Page 161
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Botany. Distribution and character of Sabal louisiana
Vol 33, Page 170
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Two new basidiomycetous fungi parasitic on nematodes
Vol 33, Page 183
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Thomas Jefferson and science
Vol 33, Page 193
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New species of flies of the genera Baccha and Rhinoprosopa (Syrphidae)
Vol 33, Page 214
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A folliculinid associated with a hermit crab
Vol 33, Page 216
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On a species of pycnogonid from the North Pacific
Vol 33, Page 223
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Geochemistry
Vol 33, Page 225
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Stem and foliage scab of Sweet Potato (Ipomoea batatas)
Vol 33, Page 244
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Descriptions of a new genus and a new species of Parodontinae, characinid fishes from South America
Vol 33, Page 251
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A new species of Cyclocoelum, a trematode from the catbird
Vol 33, Page 255
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A revision of the genus Steganocrinus
Vol 33, Page 259
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A new wood quail of the genus Dendrortyx
Vol 33, Page 272
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Two new characinid fishes from South America of the genus Gilbertolus Eigenmann
Vol 33, Page 273
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Two new ostracods of the genus Entocythere and records of previously described species
Vol 33, Page 276
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The last passenger pigeon hunts of the Cornplanter Senecas
Vol 33, Page 289
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New grasses from South America
Vol 33, Page 316
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Another Mexican snake of the genus Pliocercus
Vol 33, Page 344
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Insect taxonomy and principles of speciation
Vol 33, Page 353
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The paleontology and stratigraphy of the upper Martinsburg formation of Massanutten Mountain, Virginia
Vol 33, Page 358
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Critical notes on the avian genus Lophortyx
Vol 33, Page 369
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A new snake of the genus Tropidodipsas from Mexico
Vol 33, Page 371
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Review of the genera of Blennioid fishes related to Ophioblennius
Vol 33, Page 373