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, 1966)

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, 1968)

University of Kansas publications, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1969)

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, 1926)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1927)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1936)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1938)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1939)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1942)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1944)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1947)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1950)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1952)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1953)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1955)

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, 1958)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1962)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1965)

The University of Kansas science bulletin - University of Kansas. Museum of Natural History. (University of Kansas, 1995)

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

Unter den tropen; wanderungen durch Venezuela, am Orinoco, durch Britisch Guyana und am Amazonenstrome in den jahren 1849-1868 - Appun, Carl Ferdinand, 1820 -1872 (1871)

Untersuchungen am Zitteraal : gymnotus electricus - Du Bois-Reymond, Emil Heinrich, 1818 -1896 (Veit, 1881)

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

Untersuchungen über das Variiren der Mauereidechse : ein Beitrag zur Theorie von der Entwicklung aus constitutionellen Ursachen, sowie zum Darwinismus - Eimer, Theodor, 1843 -1898 (Nicolaische Verlags-Buchhandlung, 1881)

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

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 Naturlehre des Menschen und der Tiere (1860)

Untersuchungen zur vergleichenden anatomie der wirbelsäule bei amphibien und reptilien - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1862)

Untersuchungen zur vergleichenden anatomie der wirbelthiere - Gegenbaur, C. (Carl), 1826 -1903 (W. Engelmann, 1864)

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

Upper thermal tolerances of anuran embryos in relation to stage of development and breeding habits - Zweifel, Richard George, 1926 -2019 (American Museum of Natural History, 1977)

USDA-ARS collection of entomopathogenic fungal cultures ARSEF - USDA-ARS Plant Protection Research Unit. (USDA-ARS Plant Protection Research Unit, U.S. Plant, Soil, and Nutrition Laboratory, 1998)

The vegetable kingdom; or, The structure, classification, and uses of plants, illustrated upon the natural system - Lindley, John, 1799 -1865 (Bradbury & Evans, 1853)