Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1877)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1881)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1891)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1895)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1900)

Travels in Brazil, in 1815, 1816, and 1817 - Wied, Maximilian, Prinz von, 1782 -1867 (R. Phillips, 1820)

Travels in Lycia, Milyas, and the Cibyratis : in company with the late Rev. E. T. Daniell - Forbes, Edward 1815 -1854 (John Van Voorst, 1847)

Travels in Peru and India while superintending the collection of chinchona plants and seeds in South America, and their introduction into India - Markham, Clements R. Sir, (Clements Robert), 1830 -1916 (J. Murray, 1862)

Travels in the interior of South Africa, comprising fifteen years' hunting and trading; with journeys across the continent from Natal to Walvis Bay, and visits to Lake Ngami and the Victoria Falls - Chapman, James, traveller. (Bell & Daldy, 1868)

The treasury of natural history; or, A popular dictionary of animated nature: in which the zoological characteristics that distinguish the different classes, genera, and species, are combined with a variety of interesting information illustrative of the habits, instincts, and general economy of the animal kingdom. To which are added, A syllabus of practical taxidermy, and A glossarial appendix. Embellished with nine hundred woodcuts, expressly engraved for this work - Maunder, Samuel, 1785 -1849 (Longman, Brown, Green, and Longmans, 1852)

A treatise on the geography and classification of animals - Swainson, William, 1789 -1855 (Longman, Rees, Orme, Brown, Green & Longman, Taylor, 1835)

A treatise on the geography and classification of animals - Swainson, William, 1789 -1855 (Printed for Longman, Rees, Orme, Brown, Green & Longman, 1835)

A treatise on the geography and classification of animals - Swainson, William, 1789 -1855 (Printed for Longman, Rees, Orme, Brown, Green & Longman and John Taylor, 1835)

A treatise on the geography and classification of animals - Swainson, William, 1789 -1855 (Printed for Longman, Rees, Orme, Brown, Green & Longman [etc.], 1835)

The trematode genus Opisthorchis R. Blanchard, 1895 - Barker, Franklin Davis, 1877 -1936 (Asselin et Houzeau, 1911)

Trinidad: its geography, natural resources, administration, present condition, and prospects - De Verteuil, Louis Antoine Aimé Gaston, 1807 - (Ward and Lock, 1858)

Trinidad, its geography, natural resources, administration, present condition, and prospects - Verteuil, L. A. A. de (Cassell, 1884)

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1990)

Turner on birds : a short and succinct history of the principal birds noticed by Pliny and Aristotle first published by Doctor William Turner, 1544 - Evans, A. H. (Arthur Humble) (University Press, 1903)

Turner on birds; a short and succinct history of the principal birds noticed by Pliny and Aristotle, first published by Doctor William Turner, 1544 - Evans, A. H. (Arthur Humble) (University Press, 1903)

Turner on birds - Evans, A. H. (Arthur Humble) (University press, 1903)

Turner on birds: a short and succinct history of the principal birds noticed by Pliny and Aristotle first published by Doctor William Turner, 1544 - Evans, A. H. (Arthur Humble) (University press, 1903)

Het tweede deel of vervolg van het wondertooneel der natuur, ofte een korte beschrijvinge zo van bloedelooze, zwemmende, vliegende, kruipende, en viervoetige geklaauwde eijerleggende dieren, als van hoornen, schulpen, koraalen, zee-heesters, metallijkende en in steen veranderde dingen, enz. van de welke een zeer groote meenigte word bevat in de kabinetten van - Vincent, Levinus, 1658 -1727 (gedrukt voor den auteur, en zijn te bekoomen bij Gerard Valk op den Dam, en Joannes van Leeuwen in de Gsthuis-Moolen-steeg, 1715)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1966)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1973)

Types and breeds of farm animals - Plumb, Charles S. (Charles Sumner), 1860 -1939 (Ginn, 1906)

Types of birds in the Tring Museum - Zoological Museum (Tring, England) (1922)

Über das System und die Charakteristik der natürlichen Familien der Vögel - Fitzinger, Leopold Joseph, 1802 -1884 (Kais. Kön. Hof- und Staatsdruckerei, 1856)

Uccelli dello scioa e della regione fra zeila e lo scioa - Salvadori, Tommaso, 1835 -1923 (Tip. del Regio istituto sordo-muti, 1884)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1858)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1951)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1966)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

The unknown horn of Africa : an exploration from Berbera to the Leopard River - James, F. L. (Frank Linsly), 1851 -1890 (G. Philip, 1890)

Unterhaltungen aus der Naturgeschichte [4-5] der Vögel, erster [-zweyter] Theil - Wilhelm, Gottlieb Tobias, 1758 -1811 (In der M. Engelbrechtischen Kunsthandlung, 1795)

Untersuchungen über die Fauna Peruana - Humboldt, Alexander von, 1769 -1859 (Scheitlin und Zollikofer, 1844)

Untersuchungen über den Bau des Knöchernen Vogelkopfes - Magnus, Hugo. (Wilhelm Engelmann, 1870)

Untersuchungen uber die Entwickelungs-Gesetze der organischen Welt wahrend der Bildungs-Zeit unserer Erd-Oberflache : eine von der Franzosischen Akademie im Jahre 1857 gekronte Preisschrift, mit ihrer Erlaubniss Deutsch herausgegeben - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart'sche Verlagshandlung, 1858)

Untersuchungen über die Verbreitung des Tigers (Felis tigris) und seine Beziehungen zur Menschheit : ein Sendschreiben an den Herrn Baron A. v. Humboldt - Brandt, Johann-Friedrich, 1802 -1879 (Buchdr. der Kaiserlichen Akademie der Wissenschaften, 1856)

Untersuchungen zur Morphologie und Systematik der Vögel, zugleich ein Beitrag zur Anatomie der Stütz- und Bewegungsorgane - Fürbringer, Maximilian, 1846 -1920 (T. van Holkema, 1888)