Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1857)

Transactions of the San Diego Society of Natural History - San Diego Society of Natural History. (The Society, 1964)

Transactions of the Tyneside Naturalists' Field Club - Tyneside Naturalists' Field Club. (F. & W. Dodsworth, 1863)

Transactions of the Wisconsin State Agricultural Society ... - Wisconsin State Agricultural Society. (The Society, 1852)

Transactions of the Woolhope Naturalists' Field Club - Woolhope Naturalists' Field Club. (Woolhope Naturalists' Field Club, 1869)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1862)

Transactions of the Zoological Society of London - Zoological Society of London. (Published for the Zoological Society of London by Academic Press, 1876)

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

Transactions - Ottawa Field-Naturalists' Club - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1884)

Travels in New Zealand with contributions to the geography, geology, botany, and natural history of that country - Dieffenbach, Ernst, 1811 -1855 (J. Murray, 1843)

Travels in the Confederation, 1783-1784 - Morrison, Alfred J. (W.J. Campbell, 1911)

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

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)

The treasury of botany: a popular dictionary of the vegetable kingdom; with which is incorporated a glossary of botanical terms - Lindley, John, 1799 -1865 (Longmans, Green, and Co, 1866)

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 comparative embryology - Balfour, Francis M. (Francis Maitland), 1851 -1882 (Macmillan and Co, 1885)

Treatise on Malacology; or, the natural classification of shells and shell fish. By William Swainson ... - Swainson, William, 1789 -1855 (Printed for Longman, Orme, Brown, Green & Longmans [etc.], 1840)

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, 1909)

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

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

Trichologia mammalium; or, A treatise on the organization, properties, and uses of hair and wool; together with an essay upon the raising and breeding of sheep - Browne, Peter A. (Peter Arrell), 1782 -1860 (J.H. Jones, printer, 1853)

Tropical agriculturist and magazine of the Ceylon Agricultural Society - Ceylon Agricultural Society. (1901)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1905)

Trudy Russkago entomologicheskago obshchestva - Russkoe entomologicheskoe obshchestvo (1861)

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

Trypanosomes and trypanosomiases - Mesnil, Félix 1868 -1938 (W.T. Keener, 1907)

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

Two years in the jungle : the experiences of a hunter and naturalist in India, Ceylon, the Malay Peninsula and Borneo - Hornaday, William T. (William Temple), 1854 -1937 (Charles Scribner's Sons, 1910)

Two years in the jungle : the experiences of a hunter and naturalist in India, Ceylon, the Malay Peninsula and Borneo - Hornaday, William T. (William Temple), 1854 -1937 (Charles Scribner's Sons, 1901)

Two years in the jungle : the experiences of a hunter and naturalist in India, Ceylon, the Malay Peninsula and Borneo - Hornaday, William T. (William Temple), 1854 -1937 (Scribner's Sons, 1904)

Die Tympanalgegend des Säugetierschädels / von P.N. van Kampen - Kampen, Pieter Nicolaas van, 1878 -1937 (W. Engelmann, 1905)

The type specimens of Brazilian mammals collected by Prince Maximilian zu Wied - Wied, Maximilian, Prinz von, 1782 -1867 (American Museum of Natural History, 1965)

Typical flies; a photographic altas - Pearce, Ethel Katharine, 1856 - (University press, 1921)

Übersicht der Säugethiere und Vögel der Kola-Halbinsel - Pleske, F. D. (Feodor Dmitrievich), 1858 -1932 (K. Akademie der Wissenschaften, 1884)

Über den Bau von Angiopteris - Mettenius, G. (Georg), 1823 -1866 (S. Hirzel, 1863)

Ueber den Pollen - Fritzsche, Carl Julius, 1808 -1871 (Kais. Academie der Wissenschaften, 1837)

Ueber den Zwischenkiefer und seine Nachbarorgane bei Säugethieren; eine Studie - Schwink, F. (Buchholz & Werner, 1888)

Ueber die geographische Vertheilung der Säugethiere - Minding, Julius (Enslin, 1829)

Uebersicht der Arbeiten und Veranderungen der Schlesischen Gesellschaft fur Vaterlandische Kultur - Schlesische Gesellschaft für Vaterländische Kultur. (1827)

The Uganda protectorate : an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1904)

The Uganda protectorate; an attempt to give some description of the physical geography, botany, zoology, anthropology, languages and history of the territories under British protection in East Central Africa, between the Congo Free State and the Rift Valley and between the first degree of south latitude and the fifth degree of north latitude - Johnston, Harry, 1858 -1927 (Hutchinson & Co, 1902)

Umrisse der vergleichenden Anatomie - Royal College of Physicians of Edinburgh. (O. Wigand, 1842)

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

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

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1852)

The Universal herbal; or, Botanical, medical, and agricultural dictionary; containing an account of all the known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied, whether as food, as medicine, or in the arts and manufactures, with the best methods of propagation, and the most recent agricultural improvements ... - Green, Thomas. (Caxton Press, 1824)

The universal herbal : or botanical, medical and agricultural dictionary : containing an account of all known plants in the world, arranged according to the Linnean system. Specifying the uses to which they are or may be applied - Green, Thomas. (Printed at the Caxton Press by H. Fisher, 1816)

An universal system of natural history : including the natural history of man - Linné, Carl von, 1707 -1778 (Printed for the Proprietor : sold by Champante and Whitrow [etc.], 1794)

University of California publications in zoology - University of California, Berkeley. (University Press, 1916)

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, 1948)

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, 1952)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1953)

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, 1955)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1961)

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, 1960)

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, 1966)

The University of Kansas science bulletin - 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, 1972)

University of Toronto studies. Physiological series. no. 1-98. 1900-28 - University of Toronto. (University Library: Published by the Librarian, 1900)

Unsere Freiland-Nadelhölzer; Anzucht, Pflege und Verwendung aller bekannten in Mitteleuropa im freien Kulturfähigen Nadelhölzer mit Einschluss von Ginkgo und Ephedra - Appel, Otto, 1867 -1952 (Hölder-Pichler-Tempsky, 1923)

Unterhaltungen aus der Naturgeschichte : der Fische - Wilhelm, Gottlieb Tobias, 1758 -1811 (in J.A. Schlo?ers Buch und Kunsthandlung, 1834)

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

Untersuchungen über das Mainzer tertiärbecken und dessen stellung im geologischen systeme - Sandberger, Fridolin, 1826 -1898 (Verlag von Kreidel und Niedner, 1853)

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 zur Naturlehre des Menschen und der Tiere (1860)

Untersuchungen zur vergleichenden Muskellehre der Wirbeltiere; die musculi serrati postici der Säugetiere und ihre Phylogenese. Mit 4 Tafeln und 28 Figuren im Text - Maurer, Friedrich, 1875 - (G. Fischer, 1905)

Upland and meadow : a Poaetquissings chronicle - Abbott, Charles Conrad, 1843 -1919 (Harper & Brothers, 1886)

The U.S. Naval Astronomical Expedition to the southern hemisphere, during the years 1849-'50-'51-'52 - Gilliss, J. M. (James Melville), 1811 -1865 (A. O. P. Nicholson, printer, 1855)