Traité de zoologie - Perrier, Edmond, 1844 -1921 (Masson, 1893)

Traité élémentaire de paléontologie; ou, Histoire naturelle des animaux fossiles, considérés dans leurs rapports zoologiques et géologiques - Pictet, François Jules, 1809 -1872 (Langlois et Leclerq, 1844)

Transactions and proceedings of the New Zealand Institute - New Zealand Institute. (New Zealand Institute, 1911)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1910)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1914)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1866)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1867)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1878)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1900)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1899)

Transactions of the Geological Society - Geological Society of London ([The Society], 1835)

Transactions of the Geological Society - Geological Society of London ([The Society], 1836)

Transactions of the Geological Society - Geological Society of London ([The Society], 1845)

Transactions of the Hertfordshire Natural History Society and Field Club - Hertfordshire Natural History Society; Field Club. (The Club, 1879)

Transactions of the Hertfordshire Natural History Society and Field Club - Hertfordshire Natural History Society; Field Club. (The Club, 1883)

Transactions of the Linnean Society of London. Zoology - Linnean Society of London. ([The Society], 1879)

Transactions of the Linnean Society of London, 2nd series: Botany - Linnean Society of London. (1896)

Transactions of the Linnean Society of London, 2nd series: Botany - Linnean Society of London. (1901)

Transactions of the Linnean Society of London - Linnean Society of London. ([The Society], 1791-1875, 1842)

Transactions of the Linnean Society of London - Linnean Society of London. ([The Society], 1791-1875, 1843)

The Transactions of the Microscopical Society of London - Microscopical Society of London. (John Van Voorst, 1844)

The Transactions of the Microscopical Society of London - Microscopical Society of London. (John Van Voorst, 1853)

The Transactions of the Microscopical Society of London - Microscopical Society of London. (John Van Voorst, 1859)

Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne - Tyneside Naturalists' Field Club. (F. & W. Dodsworth [et al.], 1865)

Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne - Tyneside Naturalists' Field Club. (F. & W. Dodsworth [et al.], 1870)

Transactions of the Natural History Society of Northumbria - Natural History Society of Northumbria. (The Society, 1872)

Transactions of the Norfolk and Norwich Naturalists' Society - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists' Society, 1962)

Transactions of the Norfolk and Norwich Naturalists' Society - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists' Society, 1966)

Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1900)

Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1903)

Transactions of the Tyneside Naturalists' Field Club - Tyneside Naturalists' Field Club. (F. & W. Dodsworth, 1860)

Transactions of the Watford Natural History Society and Hertfordshire Field Club - Watford Natural History Society; Hertfordshire Field Club. (Hardwicke and Bogue, 1878)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1921)

Transactions of the Woolhope Naturalists' Field Club - Woolhope Naturalists' Field Club. (Woolhope Naturalists' Field Club, 1866)

Treatise on the British freshwater Algae - West, G. S. (George Stephen), 1876 -1919 (Cambridge Univ. Press, 1904)

A treatise on the British freshwater Algae - West, G. S. (George Stephen), 1876 -1919 (University Press, 1904)

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

A treatise on zoology - Lankester, E. Ray Sir, (Edwin Ray), 1847 -1929 (Adam and Charles Black, 1900)

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

Tromsø museums aarsberetning for ... - Tromsø museum. ([Tromsø museum], 1901)

Tromsø museums aarshefter - Tromsø museum. (C. Hansen, 1881)

Tromsø museums aarshefter - Tromsø museum. (C. Hansen, 1904)

Tromsø museums aarshefter - Tromsø museum. (C. Hansen, 1894)

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

Tryonia - Academy of Natural Sciences of Philadelphia. Department of Malacology. (Dept. of Malacology, Academy of Natural Sciences of Philadelphia, 1992)

Twelve lectures on comparative embryology, delivered before the Lowell Institute, in Boston, December and January, 1848-9 - Agassiz, Louis, 1807 -1873 (Henry Flanders & Co, 1849)

Types of British vegetation - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (University Press, 1911)

Ueber das silurische Schichtensystem in Esthland - Eichwald, Carl Eduard von, 1795 -1876 ([Medizinischen Akademie?], 1840)

Ueber Lias Beta - Schlichter, Gottlob Henrich. (1885)

Ueberblick über die Trias : mit Berücksichtung ihres Vorkommens in der Alpen - Alberti, Friedrich August von, 1795 -1878 (J.G. Cotta, 1864)

Uintacrinus: its structure and relations - Springer, Frank, 1848 -1927 (Printed for the Museum, 1901)

Uintacrinus: its structure and relations / by Frank Springer - Springer, Frank, 1848 -1927 (Printed for the Museum, 1901)

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

Umwelt und Innenwelt der Tiere [microform] - Uexküll, Jakob von, 1864 -1944 (J. Springer, 1909)

University of California publications in zoology - University of California, Berkeley. (University Press, 1907)

University of California publications in zoology - University of California, Berkeley. (University Press, 1908)

Unterhaltungen aus der Naturgeschichte. [11-12], der Würmer, erster [-zweyter] Theil - Wilhelm, Gottlieb Tobias, 1758 -1811 (in der Mart. Engelbrechtischen Kunsthandlung, 1801)

Untersuchungen über die mikroskopische Fauna Argentiniens. Erster Tiel: Die Protozoen - Frenzel, Johannes, 1858 -1897 (E. Nägele, 1897)

U.S. Navy Symposium on Military Oceanography : Proceedings - United States. Naval Oceanographic Office. (Naval Oceanographic Office, 1969)

The utilization of minute life; being practical studies on insects, Crustacea, Moll sca, worms, polypes, Infusoria, and sponges - Phipson, T. L. (Thomas Lamb), 1833 -1908 (Groombridge, 1864)

The utilization of minute life; being practical studies on insects, Crustacea, Moll sca, worms, polypes, Infusoria, and sponges. By Dr. T. L. Phipson - Phipson, T. L. (Thomas Lamb), 1833 -1908 (Groombridge, 1864)

The utilization of minute life; being practical studies on insects, Crustacea, Mollusca, worms, polypes, Infusoria, and sponges - Phipson, Thomas Lamb, 1833 - (Groombridge and sons, 1864)

The veliger - California Malacozoological Society. (California Malacozoological Society, 1992)

Vergleichende Zoologie - Gravenhorst, J. L. C. (Johann Ludwig Christian), 1777 -1857 (Druck und Verlag von Grass, Barth and Comp, 1843)

Verhandelingen over de natuurlijke geschiedenis der Nederlandsche overzeesche bezittingen - Schlegel, H. (Hermann), 1804 -1884 (In commissie bij. S. en J. Luchtmans en C.C. van der Hoek, 1844)

Verhandelingen van het Bataviaasch Genootschap der Kunsten en Wetenschappen - Bataviaasch Genootschap van Kunsten en Wetenschappen. (Egbert Heemen, 1863)

Verhandlungen - Naturhistorischer Verein der Preussischen Rheinlande und Westfalens. (1844)

Verhandlungen - Naturhistorischer Verein der Preussischen Rheinlande und Westfalens. (1879)