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Geographic variation in birds with especial reference to the effects of humidity
Vol 1, Iss 1, Page 1, Date 1907-09-25
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A contribution to the ecology of the adult hoatzin
Vol 1, Iss 2, Page 45, Date 1909-12-28
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An ornithological reconnaissance of Northeastern Venezuela
Vol 1, Iss 3, Page 67, Date 1909-12-28
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New species of insects collected by C. William Beebe in South America-- I. Mallophaga from the hoatzin
Vol 1, Iss 4, Page 117, Date 1910-01-15
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New species of insects collected by C. William Beebe in South America—II. A new mantis from British Guiana
Vol 1, Iss 4, Page 123, Date 1910-01-15
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New species of insects collected by C. William Beebe in South America--III. New species of Lepidoptera from British Guiana
Vol 1, Iss 4, Page 125, Date 1910-01-15
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Racket formation in tail-feathers of the motmots
Vol 1, Iss 5, Page 140, Date 1910-01-15
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Three cases of supernumerary toes in the broad-winged hawk, Buteo platypterus (Vieill.)
Vol 1, Iss 6, Page 150, Date 1910-01-15
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The undescribed juvenal plumage of the Yucatan jay. Cissilopha yucatanica (Dubois)
Vol 1, Iss 7, Page 153, Date 1911-12-05
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The northern elephant seal, Macrorhinus angustirostris, Gill
Vol 1, Iss 8, Page 159, Date 1912-04-15
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Some common affections of the respiratory and digestive organs among primates
Vol 1, Iss 9, Page 174, Date 1912-07-01
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New Blood Pheasants
Vol 1, Iss 10, Page 189, Date 1912-08-17
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The feeding habits of serpents
Vol 1, Iss 11, Page 197, Date 1912-11
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Notes on the ontogeny of the white ibis, Guara alba
Vol 1, Iss 12, Page 241, Date 1914-02
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Specialization of tail down in certain ducks
Vol 1, Iss 13, Page 249, Date 1914-02
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Effect of a postponed moult upon the sequence of plumage in certain passerine birds
Vol 1, Iss 14, Page 253, Date 1914-02
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Preliminary pheasant studies
Vol 1, Iss 15, Page 261, Date 1914-04
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The porpoise in captivity
Vol 1, Iss 16, Page 289, Date 1914-06
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Review of the genus Gennaeus
Vol 1, Iss 17, Page 303, Date 1914-09
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Notes on Costa Rican birds
Vol 1, Iss 18, Page 325, Date 1914-09
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Natural history of the whale shark, Rhineodon typus Smith
Vol 1, Iss 19, Page 349, Date 1915-03
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Some new species of ectoparasitic trematodes
Vol 1, Iss 20, Page 395, Date 1915-06