Protozoa ... - Bhatia, B. L. (Bihari Lal), 1884 -1941 (Taylor and Francis, 1938)

Protozoa - Schwager, Conrad. (C.F. Winter, 1880)

Protozoan parasites of domestic animals and of man - Levine, Norman D. (Burgess Pub. Co, 1961)

Protozoölogy - Calkins, Gary N. (Gary Nathan), 1869 -1943 (Lea & Febiger, 1909)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C. C. Thomas, 1954)

Protozoology - Kudo, Richard R. (Richard Roksabro), 1886 -1967 (C.C. Thomas, 1946)

Provincial Museum of Natural History and Ethnology - British Columbia Provincial Museum. (Printed by R. Wolfenden, 1909)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1880)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1881)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1884)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1891)

Ptaki - Lemberg. Muzeum imienia Dzieduszyckich. (Z I Zwiazkowij drukarni, 1880)

Publicaciones del Departamento de Zoología - Universidad de Barcelona. Departamento de Zoología. (Ediciones de la Universidad de Barcelona, 1987)

Publicaciones del Departamento de Zoología - Universidad de Barcelona. Departamento de Zoología. (Ediciones de la Universidad de Barcelona, 1988)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1969)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1974)

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1982)

The published writings of George Newbold Lawrence, 1844-1891 - Foster, Lyman Spalding. (Govt. Print. Off, 1892)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1987)

Quarterly bulletin of the Nuttall Ornithological Club - Nuttall Ornithological Club. (The Club, 1876)

Quarterly journal of microscopical science (J. and A. Churchill [etc.], 1906)

The Quarterly journal of the Boston Zoological Society - Boston Zoological Society. (The Society, 1883)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1962)

Quarterly Magazine of the High Wycombe Natural History Society - High Wycombe Natural History Society. (1866)

Quarterly report of the Pennsylvania Board of Agriculture - Pennsylvania. State Board of Agriculture. (Pennsylvania Board of Agriculture, 1885)

Quarterly report of the Pennsylvania Board of Agriculture - Pennsylvania. State Board of Agriculture. (Pennsylvania Board of Agriculture, 1888)

Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1899)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1946)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1950)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1906)

Raboty Volzhskoĭ biologicheskoĭ stant͡sii = Arbeiten der Biologischen Wolga-Station - Volzhskai͡a biologicheskai͡a stant͡sii͡a (Stant͡sii͡a, 1908)

Radiation biology - Hollaender, Alexander, 1898 - (McGraw-Hill, 1954)

Rambles of a naturalist in Egypt & other countries. With an analysis of the claims of certain foreign birds to be considered British, and other ornithological notes - Gurney, J. H. (John Henry), 1848 -1922 (Jarrold, 1876)

Rambles of a naturalist in Egypt & other countries : with an analysis of the claims of certain foreign birds to be considered British, and other ornithological notes - Gurney, J. H. (John Henry), 1848 -1922 (Jarrold, 1876)

Rapid biological inventories - Field Museum of Natural History. Environmental; Conservation Programs. (Field Museum, 2005)

Rapport a M. le Ministre de l'instruction publique et des Beaux-Arts sur le congrès et l'exposition ornithologiques de Vienne, en 1884 - Congrès et l'exposition ornithologiques Vienna) 1884 - (Burlin et Cie, 1884)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1974)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1976)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1977)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1978)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1979)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1981)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1982)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1984)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1985)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1972)

Raptor research - Raptor Research Foundation. (Raptor Research Foundation, 1986)

Raptor research news - Raptor Research Foundation. (Raptor Research Foundation, 1968)

Reading Naturalist. Reading - Reading Natural History Society. (1967)

Recensio avium in academici liberi baronis de Mueller ornithologico museo stuttgardiano collectarum - Calwer, C. G. (Carl Gustav), 1821 -1874 (Officinae Regiae, 1854)

Recherches anatomiques, embryologiques, histologiques et comparatives sur le poumon des oiseaux - Juillet, Armand. (A. Schulz, 1912)

Recherches anatomiques, histologiques et embryologiques sur l'appareil gastrique des oiseaux - Cazin, Maurice (G. Masson, 1888)

Recherches sur la faune de Madagascar et de ses dépendances - Hoffmann, C. K. 1841 -1903 (J.K. Steenhoff, 1868)

Recherches sur la glande uropygienne des oiseaux - Paris, Paul, 1875 -1938. (Librairie A. Schulz, 1913)

Recherches zoologiques des steppes des Kirguiz - Nazarow, P. S. (Impr. de l'Université Impériale, 1886)

A record of Nebraska ornithology-pt. I - Wolcott, Robert Henry, 1868 -1934 (Under the Direction of H. B. Ward, 1903)

The Record of zoological literature (J. van Voorst, 1866)

The Record of zoological literature (J. van Voorst, 1867)

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Records of the Auckland Institute and Museum - Auckland Institute; Museum. (Auckland Institute and Museum, 1954)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1902)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1909)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 1916)

Records of the Australian Museum - Australian Museum (Printed by order of the Trustees, 2010)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1967)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1971)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1989)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1996)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 2003)

Recreation - Shields, G. O. (George Oliver), 1846 -1925 (G.O. Shields (Coquina), 1897)

Recreation - Shields, G. O. (George Oliver), 1846 -1925 (G.O. Shields (Coquina), 1900)

Recreation - Shields, G. O. (George Oliver), 1846 -1925 (G.O. Shields (Coquina), 1902)

Recreation - Shields, G. O. (George Oliver), 1846 -1925 (G.O. Shields (Coquina), 1903)

Recueil de l'Institut botanique (Université de Bruxelles) - Institut botanique Léo Errera. (Henri Lamertin, 1902)

Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1853)

Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1875)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1914)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1908)

Reise in Ostafrika in den Jahren 1903-1905 : mit Mitteln der Hermann und Elise geb. Heckmann Wentzel-Stiftung : Wissenschaftliche Ergebnisse - Voeltzkow, Alfred, 1860 -1946 (E. Schweizerbartsche Verlagsbuchhandlung, 1917)

Reisen im Süden von Ost-Sibirien in den Jahren 1855-1859, incl - Geograficheskoe obshchestvo SSSR (Buchdruckerei der K. Akademie der Wissenschaften, 1863)

Reisen und Forschungen im Amur-Lande in den Jahren 1854-1856 - Schrenck, Leopold von, 1826 -1894 (Commissionäre der K. Akademie der Wissenschaften, 1858)

The relation of sparrows to agriculture - Judd, Sylvester D., 1871 -1905 (U.S. Dept. of Agriculture, Division of Biological Survey, 1901)

Remarks on the starlings, family Sturnidae - Amadon, Dean (American Museum of Natural History, 1956)

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Report of observations of injurious insects and common farm pests, during the year ... : with methods of prevention and remedy - Ormerod, Eleanor A. (Eleanor Anne), 1828 -1901 (Simpkin, Marshall & Co, 1888)

Report of observations of injurious insects and common farm pests, during the year ... : with methods of prevention and remedy - Ormerod, Eleanor A. (Eleanor Anne), 1828 -1901 (Simpkin, Marshall & Co, 1893)

Report of observations of injurious insects and common farm pests, during the year ... : with methods of prevention and remedy - Ormerod, Eleanor A. (Eleanor Anne), 1828 -1901 (Simpkin, Marshall & Co, 1898)

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Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1840)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1870)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1910)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1912)

Report of the Canadian Arctic Expedition 1913-18 (F. A. Acland, Printer to the King, 1913)

Report of the Chester Society of Natural Science, Literature and Art - Chester Society of Natural Science Literature; Art. (1886)

Report of the chief of the Bureau of Biological Survey - United States. Bureau of Biological Survey. (United States Govt. Print. Off, 1886)

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Report of the (Free) Public Library, Museum (Liverpool) - Liverpool (England). Free Public Library. Museum (1897)

Report of the Geological Survey of Ohio - Geological Survey of Ohio. (Nevins & Myers, state printers, 1882)

Report of the geological survey of Ohio - Geological Survey of Ohio. (Nevins & Meyers, 1882)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1908)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1912)

Report of the Michigan Academy of Science - Michigan Academy of Science. Council. (The Academy, 1914)