Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1858)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1859)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1860)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1904)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1912)

Reports of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1927)

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Results of a biological reconnoisance of the Yukon river region. General account of the region. Annotated list of mammals - Osgood, Wilfred Hudson, 1875 -1947 (Govt. Print. Off, 1900)

Results of a biological reconnoissance of the Yukon River region - Osgood, Wilfred Hudson, 1875 -1947 (G.P.O, 1900)

The Review of applied entomology. Series A, Agricultural - C.A.B. International. Bureau of Crop Protection (Commonwealth Agricultural Bureaux, etc, 1914)

A review of the birds of Connecticut - Merriam, C. Hart (Clinton Hart), 1855 -1942 (Tuttle, Morehouse & Taylor, Printers, 1877)

A revised catalogue of the birds of Kansas : with descriptive notes of the nests and eggs of the birds known to breed in the state - Goss, N. S. (Nathaniel S.) (Kansas Publishing House, 1886)

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Revista do Museu Paulista - Museu Paulista (O Museu, 1936)

Revista do Museu Paulista - Museu Paulista (O Museu, 1938)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1920)

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The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1895)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1893)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1894)

Saggio di una distribuzione metodica degli animali vertebrati - Bonaparte, Charles-Lucien, 1803 -1857 (1831)

Saguaroland Bulletin - Desert Botanical Garden (Ariz.) (Arizona Cactus and Native Flora Society, 1949)

The scansorial foot of the woodpeckers, with comments on the evolution of perching and climbing feet in birds - Miller, Waldron DeWitt, 1879 -1929 (American Museum of Natural History, 1959)

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sheng tai xue yuan li he ye wai sheng wu xue - Smith, Robert Leo 1925 - (ke xue chu ban she, 1988)

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A sketch of the natural history (vertebrates) of the British Islands. With a concise bibliography of popular works relating to the British fauna, and a list of field clubs and natural history societies in the United Kingdom - Aflalo, Frederick G. (Frederick George), 1870 -1918 (W. Blackwood and Son, 1898)

Sketch of the North-West of America (Printed by J. Lovell, 1870)

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Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1895)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1859)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1880)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1881)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1882)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1921)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1940)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1951)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1956)

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Speciation in Colombian forest birds west of the Andes - Haffer, Jürgen (American Museum of Natural History, 1967)

Species taxa of North American birds; a contribution to comparative systematics - Mayr, Ernst, 1904 -2005 (The Club, 1970)