The summit of the years - Burroughs, John, 1837 -1921 (Houghton Mifflin company, 1913)

Supplement to the birds of Essex County, Massachusetts - Townsend, Charles Wendell, 1859 -1934 (The Club, 1920)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1889)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1890)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1891)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1892)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1894)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1897)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1899)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1902)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1903)

Supplement to the code of nomenclature and check-list of North American birds. 1-17 - American Ornithologists' Union. (The Union, 1908)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1788)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1981)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1983)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1903)

Symbolae Antillanae,seu, Fundamenta florae Indiae Occidentalis - Urban, Ignaz, 1848 -1931 (Fratres Borntraeger ;Paul Klincksieck, 1898)

Synopsis methodica stirpium Britannicarum : in qua tum notae generum characteristicae traduntur, tum species singulae breviter describuntur: ducentae quinquaginta plus minus novae species partim suis locis inseruntur, partim in appendice seorsim exhibentur : cum indice & virium epitome - Ray, John, 1627 -1705 (Prostant apud Sam. Smith ad insignia principis in coemeterio D. Pauli, 1690)

Synopsis of the parasites of vertebrates of Canada : nematodes of birds - Kennedy, Murray James, 1943 - (Alberta Agriculture, Animal Health Division, 1990)

Systema naturae, per regna tria naturae : secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae von Trattner, 1767)

Systema plantarum Europae, exhibens characteres naturales generum, characteres essentiales generum & specierum, synonima antiquorum, phrases specificas recentiorum Halleri, Scopoli, &c. Descriptiones rariorum, nec-non floras tres novas, Lugdunaeam, Delphinalem, Lithuanicam, non omissis plantis exoticis in hortis Europae vulgo obviis - Linné, Carl von, 1707 -1778 (Sumptibus Piestre & Delamolliere, 1785)

A systematic list of the birds of California - Grinnell, Joseph, 1877 -1939 (Cooper Ornithological Club, 1912)

Taylor's standard American egg catalogue : comprising a directory of prominent oölogists and collectors' handbook : a correct basis for the exchange of nests and eggs arranged with margin for check-list - Taylor, Henry Reed, 1866 -1917 (H.R. Taylor, 1904)

Teachers' manual of bird-life : a guide to the study of our common birds - Allen, J. A. (Joel Asaph), 1838 -1921 (D. Appleton and Co, 1899)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2004)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2010)

Theoria systematis plantarum; accedit familiarum phanerogamarum in series naturales dispositio, secundum structurae normas et evolutionis gradus instituta - Agardh, Jacob Georg, 1813 -1901 (Apud C. W. K. Gleerup; [etc.,etc.], 1858)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1875)

Thesaurus ornithologiae : Repertorium der gesammten ornithologischen Literatur und Nomenclator sämmtlicher Gattungen und Arten der Vögel, nebst Synonymen und geographischer Verbreitung - Giebel, C. (Christoph), 1820 -1881 (Brockhaus, 1877)

Third quarterly data report for the terrestrial baseline data accumulation program : Rio Blanco Oil Shale Project - Ecology Consultants, inc. (Ecology Consultants, Incorporated, 1975)

Through the Mackenzie Basin : a narrative of the Athabasca and Peace River Treaty Expedition of 1899 - MacFarlane, R. (Roderick), 1833 -1920 (W. Briggs, 1908)

Through the Mackenzie Basin : a narrative of the Athabasca and Peace River treaty expedition of 1899 - Mair, Charles, 1838 -1927 (William Briggs, 1908)

Through the Mackenzie basin : a narrative of the Athabasca and Peace River treaty expedition of 1899 - Mair, Charles, 1838 -1927 (William Briggs, 1908)

Tierleben : allgemeine Kunde des Tierreichs - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1911)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2003)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2005)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2009)

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Transactions of the ... annual meetings of the Kansas Academy of Science - Kansas Academy of Science. Meeting. (Kansas Pub. House, 1893)

Transactions of the ... annual meetings of the Kansas Academy of Science - Kansas Academy of Science. Meeting. (Kansas Pub. House, 1897)

Transactions of the ... annual meetings of the Kansas Academy of Science - Kansas Academy of Science. Meeting. (Kansas Pub. House, 1899)

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Transactions of the Kansas Academy of Science - Kansas Academy of Science. (Geo. W. Martin, 1911)

Transactions of the Kansas Academy of Science - Kansas Academy of Science. (W.Y. Morgan, 1906)

Transactions of the Kansas Academy of Science - Kansas Academy of Science. (W.Y. Morgan, 1911)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1980)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1981)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1986)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1996)

Transactions of the Linnaean Society of New York - Linnaean Society of New York (The Society, 1933)

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Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1927)