The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2002)

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 geology - Geikie, Archibald, 1835 -1924 (Macmillan and Co, 1882)

Text-book of palaeontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan, 1925)

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 and Co., Limited, 1910)

Text-book of zoology - Schmeil, O. (Otto), 1860 -1943 (A. and C. Black, 1901)

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

Text book of zoology - Boas, J. E. V. (Johan Erik Vesti), 1855 -1935 (Sampson Low, Marston, 1896)

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

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

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

A text-book of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillian and co., limited, 1921)

Text-book of zoology for junior students - Nicholson, Henry Alleyne, 1844 -1899 (American Book Co, 1885)

Text-book of zoology for junior students - Nicholson, Henry Alleyne, 1844 -1899 (1888)

Text-book of zoology for schools and colleges - Nicholson, Henry Alleyne, 1844 -1899 (D. Appleton and Co, 1884)

Textbook of evolution and genetics - Lindsey, Arthur Ward, 1894 - (The Macmillan Company, 1929)

Textbook of zoology - Potter, George Edwin, 1898 - (Mosby, 1947)

The Ballarat Naturalist - Field Naturalists' Club of Ballarat (Field Naturalists' Club of Ballarat, 1998)

Threatened mammals of the Mediterranean - Thornback, Jane. (UNEP, 1980)

Threatened wildlife of the United States - United States. Committee on Rare; Endangered Wildlife Species. (Bureau of Sport Fisheries and Wildlife [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1973)

Tidsskrift for populære fremstillinger af naturvidenskaben (P.G. Philipsens forlag, 1867)

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

Das Tierreich - Heck, Ludwig, 1860 -1951 (W. Pauli, 1894)

Die Tierwelt der Schweiz in der Gegenward und in der Vergangenheit. Band 1, Wirbeltiere - Goeldi, Emílio Augusto, 1859 -1917 (A. Francke, 1914)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1874)

The titanotheres of ancient Wyoming, Dakota, and Nebraska - Osborn, Henry Fairfield, 1857 -1935 (Dept. of the Interior, U.S. Geological Survey, 1929)