Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1874)

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, 1879)

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, 1903)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1910)

Transactions - Ottawa Field-Naturalists' Club - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1885)

Transunti / Reale Accademia dei Lincei - Reale Accademia dei Lincei (l'Accademia, 1878)

Transunti / Reale Accademia dei Lincei - Reale Accademia dei Lincei (l'Accademia, 1879)

Transunti / Reale Accademia dei Lincei - Reale Accademia dei Lincei (l'Accademia, 1880)

Travels in Brazil, in the years 1817-1820, : undertaken by command of His majesty the King of Bavaria by Dr. Joh.Babt. von Spix and Dr. C. F. Phil. von Martius - Spix, Johann Baptist von, 1781 -1826 (Longman, Hurst, Rees, Orme, Brown and Green, 1821)

Travels in Brazil, in the years 1817-1820 : undertaken by command of His Majesty the King of Bavaria - Martius, Karl Friedrich Philipp von, 1794 -1868 (Longman, Hurst, Rees, Orme, Brown, and Green, 1824)

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)

Travels in the interior of southern Africa - Burchell, William J. (William John), 1781 -1863 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1822)

Travels in the interior of southern Africa - Burchell, William J. (William John), 1781 -1863 (Printed for Longman, Hurst, Rees, Orme, and Brown, 1824)

Travels in Upper and Lower Egypt: undertaken by order of the old government of France - Sonnini, C. S. (Charles Sigisbert), 1751 -1812 (Printed for J. Stockdale, 1807)

Travels into the interior of southern Africa : in which are described the character and the condition of the Dutch colonists of the Cape of Good Hope, and of the several tribes of natives beyond its limits : the natural history of such subjects as occurred in the animal, mineral and vegetable kingdoms; and the geography of the southern extremity of Africa : comprehending also a topographical and statistical sketch of Cape Colony; with an inquiry into its importance as a naval and military station, as a commercial emporium; as a territorial possession - Barrow, John, Sir, 1764 -1848 (Printed for T. Cadell and W. Davis, 1806)

Travels of a naturalist in northern Europe : Norway, 1871, Archangel, 1872, Petchora, 1875 - Harvie-Brown, J. A. (John Alexander), 1844 -1916 (T. Fisher Unwin, 1905)

Travels of a naturalist in northern Europe, Norway, 1871, Archangel, 1872, Petchora, 1875 - Harvie-Brown, J. A. (John Alexander), 1844 -1916 (T. F. Unwin, 1905)

Travels through North and South Carolina, Georgia, East and West Florida, the Cherokee country, the extensive territories of the Muscogulges, or Creek confederacy, and the country of the Chactaws : containing an account of the soil and natural productions of those regions : together with observations on the manners of the Indians : embellished with copper-plates - Bartram, William, 1739 -1823 (For J. Moore, W. Jones, R. McAllister, and J. Rice, 1793)

Travels through North and South Carolina, Georgia, East and West Florida, the Cherokee country, the extensive territories of the Muscogulges or Creek confederacy, and the country of the Chactaws : containing an account of the soil and natural productions of those regions : together with observations on the manners of the Indians : embellished with copper-plates - Bartram, William, 1739 -1823 (Printed by James and Johnson, 1792)

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)

A treatise on zoology - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Adam and Charles Black, 1903)

A treatise on zoology - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (A. & C. Black, 1900)

Trees, fruits, and flowers of Minnesota - Minnesota State Horticultural Society. (Minnesota State Horticultural Society, 1904)

The tribes on my frontier; an Indian naturalist's foreign policy - Aitken, Edward Hamilton, 1851 -1909 (Thacker, 1904)

The tribes on my frontier; an Indian naturalist's foreign policy - Aitken, Edward Hamilton, 1851 -1909 (W. Thacker, 1914)

The tribes on my frontier; an Indian naturalist's foreign policy - Aitken, Edward Hamilton, 1851 -1909 (W. Thacker and Co, 1920)

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)

Trypanosomes et trypanosomiases / par A. Laveran et F. Mesnil - Mesnil, Félix 1868 -1938 (1912)

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)

Two months on the Guadalquiver - Witherby, H. F. (Harry Forbes), 1873 -1944 ("Knowledge"?, 1899)

Type specimens of birds in the American Museum of Natural History. Eurylaimidae, Dendrocolaptidae, Furnariidae, Formicariidae, Conopophagidae, and Rhinocryptidae Part 3 Passeriformes - American Museum of Natural History (American Museum of Natural History, 2000)

Type-specimens of birds in the British Museum (Natural History) - British Museum (Natural History) (BM(NH), 1971)

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

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

Typescript copy of Goldman's "Mexican Journal," February 17, 1892 - January 31, 1894 - Goldman, Edward Alphonso, 1873 -1946 (1892)

Übersicht der Nester der in Norddeutschland brütenden Vögel - Dahl, Friedrich, 1856 -1929 (1906)

Übersicht der Säugethiere und Vogel der Kola-Halbinsel - Pleske, F. D. (Feodor Dmitrievich), 1858 -1932 (Buchdruckerei der Kaiserlichen Akademie der Wissenschaften, 1886)

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

Übersicht des arachnidensystems - Koch, C. L. (Carl Ludwig), 1778 -1857 (C.H. Zeh [etc.], 1842)

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

Ueber das Leben der hochnordischen Vögel / von Friedrich Faber - Faber, Frederik, 1796 -1828 (E. Fleischer, 1825)

The "Undercliff" of the Isle of Wight; its climate, history, and natural productions - Martin, George Anne, 1807 or 8 -1867 (J. Churchill, 1849)

Unexplored Spain - Chapman, Abel, 1851 -1929 (E. Arnold, 1910)

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

The unity of the organism; or, The organismal conception of life - Ritter, William Emerson, 1856 -1944 (R. G. Badger, 1919)

The unity of the organism; or, The organismal conception of life - Ritter, William Emerson, 1856 -1944 (R.G. Badger, 1919)

University of California publications in zoology - University of California, Berkeley. (University Press, 1915)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1946)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1947)

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, 1954)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1958)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1959)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1964)

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

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1970)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1935)

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 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)