A synonymic catalogue of Orthoptera - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees [by Taylor and Francis], 1906)

A synonymic catalogue of Orthoptera - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees [by Taylor and Francis], 1910)

Synonymy of the British non-Marine Mollusca (Recent and Post-Tertiary) - Woodward, Bernard Barham, 1853 -1930 (1926)

Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur : cum synonymia critica et novarum specierum diagnosibus - Menke, Karl Theodor, 1791 -1861 (Sumtibus auctoris, typis Henrici Gelpke, 1828)

Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Mankeano adservantur : cum synonymia critica et novarum specierum diagnosibus / auctore Carolo Theodoro Menke - Menke, Karl Theodor, 1791 -1861 (Sumtibus auctoris, typis Henrici Gelpke, 1828)

Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur : cum synonymia critica et novarum specierum diagnosibus - Menke, Karl Theodor, 1791 -1861 (G. Uslar, 1830)

Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur : cum synonymia critica et novarum specierum diagnosibus - Menke, Karl Theodor, 1791 -1861 (sumtibus Georgi Uslar, 1830)

A synopsis of American fossil Bryozoa, including bibliography and synonymy - Bassler, Ray S. (Ray Smith), 1878 -1961 (Govt. Print. Off, 1900)

A synopsis of animal classification - Wilder, Harris Hawthorne, 1864 -1928 (H. Holt, 1902)

Synopsis of an arrangement of invertebrate animals in the Free Public Museum of Liverpool - Higgins, H. H. (1874)

Synopsis of an arrangement of invertebrate animals in the Free Public Museum of Liverpool - Higgins, H. H. (Printed by D. Marples & Co, 1880)

Synopsis of biological data on the rock crab, Cancer irroratus Say - United States. National Marine Fisheries Service. (National Marine Fisheries Service, 1979)

A synopsis of the animal kingdom : together with a laboratory practicum of invertebrate zoölogy / by Harris H. Wilder - Wilder, Harris Hawthorne, 1864 -1928 (1894)

Synopsis of the British Basidiomycetes ; a descriptive catalogue of the drawings and specimens in the Department of botany, British museum - British Museum (Natural History). Department of Botany. (Printed by order of the Trustees of the British museum, 1908)

Synopsis of the classification of the animal kingdom - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood, 1882)

A synopsis of the classification of the British Palæozoic rocks / by the Rev. Adam Sedgwick ; With a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge, by Frederick McCoy - Salter, John William, 1820 -1869 (J.W. Parker and Son; [etc.], 1851)

Synopsis of the contents of the museum of the Royal College of Surgeons of England - Royal College of Surgeons of England. (Taylor & Francis, 1862)

A synopsis of the general morphology of animals - Conklin, Edwin Grant, 1863 -1952 (Princeton university press, 1927)

Synopsis of the marine Invertebrata of Grand Manan: or the region about the mouth of the Bay of Fundy, New Brunswick - Stimpson, William, 1832 -1872 (Smithsonian Institution, 1853)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J. B. Metzler, 1855)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J.B. Metzler, 1855)

Synoptic key to the phyla, classes, and orders of animals ; with particular reference to fresh-water and terrestrial forms of the moist temperate region in North America - Allee, W. C. (Warder Clyde), 1885 -1955 (The University of Chicago press, 1923)

A synoptic text-book of zoölogy, for colleges and schools - Weysse, Arthur Wisswald, 1867 - (Macmillan, 1904)

The Syrphid of the Ethiopian region based on material in the collection of the British Museum (Natural history), with descriptions of new genera and species - Bezzi, Mario, 1868 -1927 (Printed by order of the Trustees, 1915)

A System of natural history : containing scientifci [sic] and popular descriptions of man, quadrupeds, birds, fishes, reptiles and insects - Cuvier, Georges, baron, 1769 -1832 (Carter, Hendee, & Co, 1834)

System of ophthalmology - Duke-Elder, Stewart, Sir, 1898 -1978 (Mosby, 1958)

Systema characterum plantarum; seu, Dictionarium rerum botanicum, filio conscriptum, et ab ipso figuris illustratum - Pereboom, Cornelius. (1788)

Systematic lists illustrative of the Flora, Fauna, Palaeontology, and Archaeology of the North of Ireland - Stewart, Samuel Alexander, 1826 -1910 (Printed for the Club, 1870)

Systematische Phylogenie ... - Haeckel, Ernst, 1834 -1919 (G. Reimer, 1895)

Systematische phylogenie - Haeckel, Ernst, 1834 -1919 (Georg Reimer, 1894)

Systematische phylogenie - Haeckel, Ernst, 1834 -1919 (Georg Reimer, 1896)

Systematische phylogenie - Haeckel, Ernst, 1834 -1919 (Georg Reimer, 1895)

Tableaux systématiques des animaux mollusques, classés en familles naturelle, dans lesquels on a établi la concordance de tous les systèmes suivis d'un prodrome général pour tous les mollusques terrestres ou fluviatiles, vivants ou fossiles - Férussac, A. E. d'Audebard de baron de, (André Étienne), 1786 -1836 (Arthus-Bertrand, 1819)

Tabular view of the orders & leading families of Myriapoda, Arachnida, Crustacea, Annelida and Entozoa - White, Adam, 1817 -1879 (Edward Stanton, 1861)

Tabular view of the primary divisions of the animal kingdom, intended to serve as an outline of an elementary course of recent zoology (cainozoology), or the natural history of existing animals - Grant, Robert Edmond, 1793 -1874 (Walton and Maberly, 1861)

The Tasmanian Naturalist - Tasmanian Field Naturalists' Club (Tasmanian Field Naturalists' Club, 1989)

Tenby: a seaside holiday - Gosse, Philip Henry, 1810 -1888 (J. Van Voorst, 1856)

The terrestrial mammals and birds of north-east Greenland : biological observations - Manniche, Arner Ludvig Valdemar, 1867 - (Bianco Lunos Bogtrykkeri, 1910)

Tetractys naturae : seu, Systema quadrimembre omnium naturalium - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis K. Wienhöberianis, 1843)

Texas conchologist (Houston Conchology Society], 1998)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2005)

A text-book in general zoölogy - Herrick, Glenn W. (Glenn Washington), 1870 -1965 (American Book Company, 1907)

A text-book in general zoölogy - Herrick, Glenn W. (Glenn Washington), 1870 -1965 (American book company, 1922)

A text-book in general zoölogy - Linville, Henry R. (Henry Richardson), 1866 -1941 (Ginn, 1906)

A text-book of animal physiology with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology - Mills, Wesley 1847 -1915 (D. Appleton, 1889)

A text-book of animal physiology, with introductory chapters on general biology and a full treatment of reproduction, for students of human and comparative (veterinary) medicine and of general biology - Mills, Wesley 1847 -1915 (D. Appleton and Company, 1889)

Text-book of biology - Howes, George Bond, 1853 -1905 (W.B. Clive, University Correspondence College Press, 1896)

Text-book of biology - Howes, George Bond, 1853 -1905 (W.B. Clive, University Correspondence College Press, 1893)

Text-book of comparative anatomy - Lang, Arnold, 1855 -1914 (Macmillan and Co, 1891)

A text-book of comparative physiology : for students and practitioners of comparative (veterinary) medicine - Mills, Wesley 1847 -1915 (Hirschfeld Brothers, 1891)

A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine - Mills, Wesley 1847 -1915 (D. Appleton, 1890)

A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine - Mills, Wesley 1847 -1915 (D. Appleton and company, 1890)

Text-book of embryology - Heape, Walter, 1855 -1929 (Macmillan, 1914)

Text-book of embryology - Bailey, Frederick R. (Frederick Randolph), 1871 -1923 (W. Wood and Company, 1921)

A text-book of human physiology, including histology and microscopical anatomy; with special reference to the requirements of practical medicine - Landois, L. (Leonard), 1837 -1902 (Griffin, 1888)

A text-book of human physiology including histology and microscopical anatomy, with special reference to the requirements of practical medicine - Landois, L. (Leonard), 1837 -1902 (P. Blakiston, son & co, 1889)

A text-book of invertebrate morphology - McMurrich, J. Playfair (James Playfair), 1859 -1939 (H. Holt and Company, 1894)

Text-book of palaeontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan, 1900)

Text-book of paleontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan and Co., limited, 1913)

Text-book of palaeontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan, 1902)

A text book of physiology - Foster, M. Sir, (Michael), 1836 -1907 (Macmillan, 1888)

A text book of physiology - Foster, M. Sir, (Michael), 1836 -1907 (Macmillan, 1883)

A text book of physiology - Foster, M. Sir, (Michael), 1836 -1907 (Macmillan and Co, 1888)

Text-book of physiology - Sharpey-Schäfer, E. A. Sir, (Edward Albert),‏ ‎ 1850 -1935 (Y. J. Pentland, 1898)

A text-book of physiology - Foster, M. Sir, (Michael), 1836 -1907 (Macmillan and Co, 1893)

Text-book of the embryology of invertebrates - Mark, E. L. (Edward Laurens), 1847 -1946 (S. Sonnenschein and co., ltd, 1895)