The trees, shrubs, and plants of Virgil - Sargeaunt, John, 1857 -1922 (B. H. Blackwell, 1920)

A trip to Nepigon some notes upon collecting and breeding butterflies from the egg - Fletcher, James 1852 -1908 (Warwick?, 1889)

Tromsø museums aarshefter - Tromsø museum. (C. Hansen, 1900)

Der Tropenpflanzer; zeitschrift für tropische landwirtschaft (1919)

Tropical agriculturist and magazine of the Ceylon Agricultural Society - Ceylon Agricultural Society. (1883)

Tropical agriculturist and magazine of the Ceylon Agricultural Society - Ceylon Agricultural Society. (1890)

Tropical agriculturist and magazine of the Ceylon Agricultural Society - Ceylon Agricultural Society. (1898)

Tropical agriculturist and magazine of the Ceylon Agricultural Society - Ceylon Agricultural Society. (1903)

Trudy Geologicheskago komiteta = Mémoires du Comité géologique - Russia. Geologicheskii komitet. (Komitet, 1895)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1880)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1883)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1884)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1887)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1902)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1901)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1903)

Trudy Imperatorskago S.-Peterburgskago botanicheskago sada.Acta Horti Petropolitani - Imperatorskii Sankt-Peterburgskii botanicheskii sad. (Imperatorskiǐ S.-Peterburgskiǐ botanicheskiǐ sad, 1912)

The true grasses - Hackel, Eduard, 1850 -1926 (H. Holt, 1890)

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

Tyd-wyzer der rupsen, vervattende, van maand tot maand, den tyd der verschyning van de, door Rösel en Kleemann, beschreeven en afgebeelde rupsen, benevens haar voedzel, ten nutte en dienst der lief hebbers opgesteld - Kleemann, Christian Friedrich Carl, 1735 -1789 (By C.H. Bohn, 1779)

Übersicht des natürlichen Systems der Pflanzen : zum Gebrauch in Vorlesungen für Anfänger - Pfitzer, Ernst Hugo Heinrich, 1846 -1906 (C. Winter, 1894)

über das Winden der Pflanzen - Palm, Ludwig Heinrich. (C. Richter, 1827)

über den Begriff der Pflanzenart und seine Anwendung - Bernhardi, Johann Jacob, 1774 -1850 (Friedrich Wilhelm Otto, 1834)

Ueber das Bestehen und Wirken des naturforschenden Vereins zu Bamberg - Naturforschende Vereins zu Bamberg. (J.M. Reindl, etc, 1854)

Ueber die Wirkungen des Arseniks auf Pflanzen im Zusammenhange mit Physiologie, Landwirthschaft und Medicinalpolizei - Jäger, Georg Friedrich von, 1785 -1866 (E. Schweizerbart, 1864)

Ueberblick der Flora arctica - Martens, Eduard von, 1831 -1904 (Druck von J.H. Demmler, 1859)

Uebersicht der Arbeiten und Veranderungen der Schlesischen Gesellschaft fur Vaterlandische Kultur - Schlesische Gesellschaft für Vaterländische Kultur. (1826)

Uebersicht der Flora von Augsburg - Caflisch, J. Friedrich (Johann Friedrich), 1817 -1882 (Jenisch & Stage, 1850)

Uebersicht des Gewaechs-Reichs in seinen natuerlichen Entwickelungsstufen : ein Versuch - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (Carl Cnobloch, 1828)

Ulyssis Aldrovandi... Historiam naturalem...de animalibus insectis libri septem... - Aldrovandi, Ulisse, 1522 -1605 (Typis Pauli Jacobi, 1618)

Ulyssis Aldrovandi ... Serpentum, et draconum historiæ libri duo - Aldrovandi, Ulisse, 1522 -1605 (apud C. Ferronium, 1640)

Die um Danzig wildwachsende Pflanzen nach ihren Geschlechtstheilen geordnet : und beschrieben - Reyger, Gottfried, 1704 -1788 (Wedel, 1768)

United States Exploring Expedition. During the year 1838, 1839, 1840, 1841, 1842 - United States. Congress. (Printed by C. Sherman, 1863)

Unity in variety, as deduced from the vegetable kingdom : being an attempt at developing that oneness which is discoverable in the habits, mode of growth, and principle of construction of all plants - Dresser, Christopher. (James S. Virtue, 1859)

Unity in variety, as deduced from the vegetable kingdom; being an attempt at developing that oneness which is discoverable in the habits, mode of growth, and principle of construction of all plants - Dresser, Christopher. (J.S. Virtue, 1860)

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)

University of California publications in agricultural sciences - University of California (System) (University of California Press, 1912)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1954)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1954)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1963)

The University of Missouri studies. Science series - University of Missouri. (The University, 1905)

The University of Missouri studies. Science series - University of Missouri. (The University, 1907)

The University of Washington Arboretum bulletin - Arboretum Foundation (Seattle, Wash.) (University of Washington Arboretum Foundation, 1958)

University studies of the University of Nebraska - University of Nebraska (Lincoln campus) (1907)

University studies of the University of Nebraska - University of Nebraska (Lincoln campus) (1888)

University studies of the University of Nebraska - University of Nebraska (Lincoln campus) (1914)

Untersuchungen aus dem Botanischen Institut zu Tübingen - Pfeffer, W. (Wilhelm), 1845 -1920 (W. Engelmann, 1881)

Untersuchungen aus dem Gesammtgebiete der Mykologie - Brefeld, Oscar, 1839 -1925 (1895)

Untersuchungen aus dem Gesammtgebiete der Mykologie - Brefeld, Oscar, 1839 -1925 (1905)

Untersuchungen über das Diastaseferment unter specieller Berücksichtigung seiner Wirkung auf Stärkekörner innerhalb der Pflanze - Krabbe, G. (Gustav), 1855 -1895 (Gebr. Borntraeger, 1890)

Untersuchungen über die anatomische Structur der Gramineenblätter in ihrem Verhältniss zu Standort und Klima, mit Versuche einer auf dieselbe begründeten Gruppirung der Gramineen - Güntz, Max, 1861 - (Rossberg, 1886)

Untersuchungen über die Stärkekörner. Wesen und Lebensgeschichte der Stärkekörner der höheren Pflanzen - Meyer, Arthur, 1850 -1922 (G. Fischer, 1895)

Upper Thames and Little Barrier Island (list), [no date] - Cheeseman, T. F. (Thomas Frederick), 1846 -1923 (The author, 1867)

Der Ursprung der Culturpflanzen - Candolle, Alphonse de, 1806 -1893 (F. A. Brockhaus, 1884)

The use of the microscope; a handbook for routine and research work - Belling, John, 1866 -1933 (McGraw-Hill book company, inc, 1930)

Useful knowledge; or, A familiar account of the various productions of nature, mineral, vegetable, and animal, which are chiefly employed for the use of man. Illus. with numerous figures, and intended as a work both of instruction and reference - Bingley, William, 1774 -1823 (Printed for Baldwin, Cradock, and Joy, 1825)

Useful knowledge: or a familiar account of the various productions of nature, mineral, vegetable, and animal, which are chiefly employed for the use of man. Illustrated with numerous figures, and intended as a work both of instruction and reference - Bingley, William, 1774 -1823 (Baldwin Cradock, and Joy, 1821)

Useful plants every child should know - Rogers, Julia Ellen, 1866 -1958 (Grosset & Dunlap, 1913)

The uses of plants : a manual of economic botany with special reference to vegetable products introduced during the last fifty years / by G. S. Boulger - Boulger, George Simonds, 1853 -1922 (Roper & Drowley, 1889)