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)

Synopsis der Fische des Rothen Meeres - Klunzinger, Carl Benjamin, 1834 -1914 (C. Ueberreuter'she Buchdruckerei, 1871)

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 fishes of North America - Jordan, David Starr, 1851 -1931 (Govt. print. off, 1882)

Synopsis of the fishes of North America - Jordan, David Starr, 1851 -1931 (G.P.O, 1882)

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)

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

Systematic list of the Frederick E. Edwards collection of British oligocene and eocene Mollusca in the British Museum (Natural History), with references to the type-specimens from similar horizons contained in other collections belonging to the Geological Department of the Museum - British Museum (Natural History). Department of Geology. (Printed by order of the Trustees, 1891)

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

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

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1987)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1989)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1993)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1997)

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

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 agricultural zoology - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (W. Blackwood and sons, 1899)

A text-book of agricultural zoology - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (W. Blackwood and Sons, 1899)

A text-book of agricultural zoology - Theobald, Fred. V. (Frederick Vincent), 1868 -1930 (W. Blackwood and sons, 1913)

Text-book of elementary zoology, for secondary educational institutions - Galloway, Thomas Walton, 1866 -1929 (Blakiston, 1910)

Text-book of embryology - Kerr, John Graham, 1869 -1957 (MacMillan, 1919)

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

Text-book of embryology - Heape, Walter, 1855 -1929 (Macmillan, 1919)

A text book of materia medica, being an account of the more important crude drugs of vegetable and animal origin, designed for students of pharmacy and medicine - Greenish, Henry G. 1855 -1933 (Churchill, 1920)

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

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

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

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1901)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein & co., lim, 1899)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (Swan Sonnenschein, 1892)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (G. Allen & Col. Ltd, 1912)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1892)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1899)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (Swan Sonnenschein, 1905)

Text-book of the embryology of man and mammals - Hertwig, Oscar, 1849 -1922 (S. Sonnenschein, 1905)

Text book of vertebrate zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1899)

Text book of vertebrate zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1899)

A text-book of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan, 1921)

A text-book of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan, 1897)

A text-book of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan and Co., Limited, 1910)

A text-book of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillian and co., limited, 1910)