Sketch-book of British birds - Sharpe, Richard Bowdler, 1847 -1909 (Society for Promoting Christian Knowledge, 1898)

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)

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)

Sketch of the North-West of America (s.n.], 1870)

Skizzirte Entwickelungs-Geschichte und natürliches System der europäischen Thierwelt : Erster Theil welcher die Vogelsäugethiere und Vögel nebst Andeutung der Entstehung der letzteren aus Amphibien enthält - Kaup, J. J. (Johann Jacob), 1803 -1873 (In commission bei Carl Wilhelm Leske, 1829)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1864)

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, 1905)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1904)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1907)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1912)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1984)

Societatum litterae (R. Friedländer, 1887)

Society for the Protection of Birds : educational series - Royal Society for the Protection of Birds (The Society's Publishing Office, 1896)

Some Chinese vertebrates ... - Bangs, Outram, 1862 -1932 (Printed for the Museum, 1912)

Somerset archaeology and natural history : the proceedings of the Somerset Archaeological and Natural History Society - Somerset Archaeological; Natural History Society. (Somerset Archaeological and Natural History Society, 1851)

Spaziergange eines Naturforschers - Marshall, William, 1845 -1907 (A. Kroner, 1922)

Species des hyménoptères d'Europe & d'Algérie - André, Ernest, 1838 -1914 (1879)

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

Specimen Fabricia Entomologica : recueil d'observations nouvelles sur les insectes ... - Jekel, Henri, 1816 -1891 (H. Jekel, 1853)

The sportsman's British bird book - Lydekker, Richard, 1849 -1915 (Rowland Ward, 1908)

The standard natural history - Kingsley, J. S. (John Sterling), 1854 -1929 (S.E. Cassino and company, 1885)

State forest land management plan : draft environmental impact statement - Montana. Department of State Lands (The Dept, 1995)

State forest land management plan : final environmental impact statement - Montana. Department of Natural Resources; Conservation (Dept. of Natural Resources and Conservation, 1996)

Status of the Mountain Plover (Charadrius montanus) in Alberta - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Biodiversity and Species At Risk Section, 2003)

Storia naturale degli uccelli che nidificano in Lombardia : ad illustrazione della raccolta ornitologica dei fratelli ercole ed Ernesto Turati - Bettoni, Eugenio. (coi tipi del pio Instituto del Patronato, 1863)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1872)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1878)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1879)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1880)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1887)

Stray feathers. Journal of ornithology for India and its dependencies - Hume, Allan Octavian, 1829 -1912 (s.n, 1873)

The student's natural history - Baird, William, 1803 -1872 (C. Griffin, 1863)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and co, 1898)

Studies scientific & social / by Alfred Russel Wallace - Wallace, Alfred Russel, 1823 -1913 (Macmillan and co., limited, 1900)

A study of the incubation periods of birds; what determines their lengths - Bergtold, W. H. (William Harry), 1865 -1956 (The Kendrick-Bellamy co, 1917)

A study of the structure of feathers, with reference to their taxonomic significance - Chandler, Asa C. (Asa Crawford), 1891 -1958 (University of California press, 1916)

Summer studies of birds and books - Fowler, W. Warde (William Warde), 1847 -1921 (Macmillan, 1895)

The Sunny South oölogist - Davis, Edwin C., (E. C. Davis, 1886)

Supplément au dictionnaire de l'Académie, ainsi qu'a la plupart des autres lexiques français, contenant les termes appropriés aux arts et aux sciences et les mots nouveaux consacrés par l'usage (Masson, 1827)

A supplement to the birds of Norfolk and Lord Howe Islands : to which is added those birds of New Zealand not figured by Buller - Mathews, Gregory Macalister Gregory Macalister 1876 -1949 (H.F. & G. Witherby, 1936)

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

Supplement to the General synopsis of birds - Latham, John, 1740 -1837 (Printed for Leigh & Sotheby, 1787)

Sur l'classification de oiseaux depuis linné : discours pronouncé à la seance publique de la classe des sciences le 16 décembre 1879 - Sélys-Longchamps, Michel-Edmond, baron de, 1813 -1900 (F. Hayez, 1879)

The survey of western Palestine. The fauna and flora of Palestine - Tristram, H. B. (Henry Baker), 1822 -1906 (The Committee of the Palestine Exploration Fund, 1884)

Survey protocol for the great gray owl within the range of the Northwest Forest Plan - United States. Bureau of Land Management. (U.S. Dept. of Agriculture, Forest Service, 2004)

Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna - Brauer, August, 1863 -1917 (G. Fischer, 1909)

Die Süsswasserfauna Deutschlands. Eine Exkursionsfauna - Brauer, August, 1863 -1917 (G. Fischer, 1911)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1916)

Svenska foglarna - Åkerlund, Peter, 1835 -1871 (Tryckt hos J. & A. Riis, 1856)

Svenska foglarna - Åkerlund, Peter, 1835 -1871 (Tryckt hos J. & A. Riis, 1883)

Svenska foglarna - Åkerlund, Peter, 1835 -1871 (Tryckt hos J. & A. Riis, 1886)

Symbolae physicae, seu, Icones et descriptiones corporum naturalium novorum aut minus cognitorum : quae ex itineribus per Libyam Aegyptum Nubiam Dongalam Syriam Arabiam et Habessiniam publico institutis sumptu Friderici Guilelmi Hemprich et Christiani Godofredi Ehrenberg : studio annis MDCCCXX-MDCCCXXV redierunt - Schumann, K. (Karl) 1851 -1904 (Ex Officina Academica, venditur a Mittlero, 1828)

Synonomik der europäischen Brutvögel und Gäste : systematisches Verzeichniss nebst Angaben über die geographische Verbreitung der Arten unter besonderer Berücksichtigung der Brutverhältnisse - Rey, Eugène, 1838 -1909 (G. Schwetschke'scher Verlag, 1872)

A synonymic catalogue of Lepidoptera Heterocera. (Moths) : Vol. 1. Sphinges and bombyces - Kirby, W. F. (William Forsell), 1844 -1912 (Gurney & Jackson, 1892)

Synopsis avium : nouveau manuel d'ornithologie - Dubois, Alphonse, 1839 -1921. (H. Lamertin, 1902)

Synopsis avium : nouveau manuel d'ornithologie - Dubois, Alphonse, 1839 -1921. (H. Lamertin, 1904)

Synopsis faunae Scandinaviae. Tom. 1. Pars 2, Aves - Billberg, Gustaf Johan, 1772 -1844 (Ex officina typogr. Caroli Deleen, 1828)

A synopsis of natural history: embracing the natural history of animals, with human and general animal physiology, botany, vegetable physiology and geology - Wyatt, Thomas, A. M. (T. Wardle, 1839)

A synopsis of the birds of North America - Audubon, John James, 1785 -1851 (Adam and Charles Black, 1839)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1842)

Synopsis of the contents of the British Museum - British Museum (printed by Woodfall, 1837)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, 1838)

Synopsis of the contents of the British Museum - British Museum (printed by G. Woodfall, 1838)

Synopsis of the contents of the British Museum - British Museum (printed by G. Woodfall, 1839)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, Angel Court, Skinner Street, 1840)

Synopsis of the contents of the British Museum - British Museum (printed by G. Woodfall, 1837)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, Angel Court, Skinner Street, 1836)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall, 1835)

Synopsis of the contents of the British Museum - British Museum (Printed by G. Woodfall and Son, Angel Court, Skinner Street, 1840)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1841)

A synoptical catalogue of British birds; intended to identify the species mentioned by different names in several catalogues already extant. Forming a book of reference to Observations on British ornithology - Forster, T. (Thomas), 1789 -1860 (Printed by and for Nichols, son, and Bentley, 1817)

System der Pterylographie. Nach seinen handschriftlich aufbewahrten Untersuchungen verfasst - Burmeister, Hermann, 1807 -1892 (E. Anton, 1840)

Systema avium Australasianarum = A systematic list of the birds of the Australasian region - American Ornithologists' Union. (British Ornithologists' Union, 1927)

Systema helminthum / auctore Carolo Mauritio Diesing ... Sumptibus Academiae caesareae scientiarum - Diesing, Karl Moritz, 1800 -1867 (W. Braumüller, 1851)

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)

A systematic catalogue of British vertebrate animals - Jenyns, Leonard, 1800 -1893 (Printed by W. Metcalfe, for J. & J.J. Deighton, and T. Stevenson, and Longman, London, 1835)

Systematic catalogue of the eggs of British birds - Malan, S. C. (John van Voorst, 1848)

Systematic notes on Palearctic birds. No. 16, Troglodytinae, Cinclidae, and Prunellidae - Vaurie, Charles (American Museum of Natural History, 1955)

Systematische Darstellung der Fortpflanzung der Vögel Europa's mit Abbildung der Eier - Thienemann, Friedrich August Ludwig, 1793 -1858 (I.A. Barth, 1825)

Systematische übersicht der Vögel Bayerns mit Rucksicht auf das örtliche und quantitative Vorkommen der Vögel, ihre Lebensweise, ihren zug und ihre Abänderungen - Blasius, Rudolf, 1842 -1907 (Kommissionsverlag von R. Oldenbourg, 1891)