Repertorio fisico-natural de la isla de Cuba - Poey, Felipe, 1799 -1891 (Impr. del gobierno y capitanía general por S.M. [etc, 1866)

Repertorium specierum novarum regni vegetabilis. Beihefte (Verlag des Repertoriums, 1919)

Repertorium specierum novarum regni vegetabilis. Beihefte (Verlag des Repertoriums, 1922)

Report - Harvard University. Museum of Comparative Zoology. (1886)

Report and transactions - Guernsey Society of Natural Science; Local Research. (The Society, 1890-1922, 1895)

Report of progress for 1878-79 - Geological Survey of Canada (Dawson Bros, 1880)

Report of T. B. Ferguson, commissioner of fisheries of Maryland, January 1881 - Ryder, John A. (John Adam) 1852 -1895 (Bell, 1881)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1838)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1843)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1831)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1865)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1873)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1874)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1877)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1885)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1884)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1893)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1904)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1905)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1907)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1909)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1916)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1924)

Report of the Commissioner for ... - Baird, Spencer Fullerton, 1823 -1887 (G.P.O, 1877)

Report of the geological survey of Ohio - Geological Survey of Ohio. (Nevins & Meyers, 1874)

Report of the Secretary of the Smithsonian Institution ... - Smithsonian Institution (Smithsonian Institution], 1911)

Report of the Secretary of the Smithsonian Institution ... - Smithsonian Institution (Smithsonian Institution], 1919)

Report of the Secretary of the Smithsonian Institution ... - Smithsonian Institution (Smithsonian Institution], 1922)

Report of the Secretary of the Smithsonian Institution ... - Smithsonian Institution (Smithsonian Institution], 1924)

Report of the State Commissioners of Fisheries for the year - Pennsylvania. State Commissioners of Fisheries. (The Commissioners], 1898)

Report of the United States Geological Survey of the territories - Lesquereux, Léo, 1806 -1889 (Govt. Print. Off, 1873)

Report of the United States National Museum - United States National Museum (U.S. Govt. Print. Off, 1884)

Report of the United States National Museum - United States National Museum (U.S. Govt. Print. Off, 1887)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1857)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reports on zoology for 1843, 1844 - Ray Society. (Printed for the Ray society, 1847)

Reprints of miscellaneous papers on fishes : faunal lists - Bleeker, P. (Pieter), 1819 -1878 (1852)

The reptiles of western North America, an account of the species known to inhabit California and Oregon, Washington, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora and Lower California - Van Denburgh, John, 1872 -1924 (California Academy of Sciences, 1922)

Rerum medicarum Novae Hispaniae thesaurus, seu, Plantarum animalium mineralium Mexicanorum historia - Colonna, Fabio, 1567 -1650 (Ex typographeio Vitalis Mascardi, 1651)

Researches on the fossil remains of the extinct mammals of Australia : with a notice of the extinct marsupials of England - Owen, Richard, 1804 -1892 (J. Erxleben, 1877)

Resultate der Wissenschaftlichen Erforschung des Balatonsees - Hungary. Földmm̋uvelésügyi Minisztérium. (E. Hölzel, 1897)

Return / British Museum - British Museum (Natural History) (British Museum, 1856)

Return / British Museum - British Museum (Natural History) (British Museum, 1890)

Return / British Museum - British Museum (Natural History) (British Museum, 1896)

Return / British Museum - British Museum (Natural History) (British Museum, 1901)

Return / British Museum - British Museum (Natural History) (British Museum, 1906)

Review of the Pleistocene of Europe, Asia and Northern Africa - Osborn, Henry Fairfield, 1857 -1935 (New York Academy of Sciences, 1915)

Revised list of the vertebrated animals now or lately living in the gardens of the Zoological society of London. 1872 - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1872)

Révision de la famille des ixodidés - Neumann, G (1896)

A revision of the Entelodontidae - Carnegie Museum (Published by the authority of the Board of Trustees of the Carnegie Institute, 1909)

Revista argentina de historia natural - Ameghino, Florentino, 1853 -1911 (J. Peuser)

Revista argentina de historia natural - Ameghino, Florentino, 1853 -1911 (J. Peuser, 1891)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1952)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1955)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1957)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1968)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1973)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1980)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1985)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1986)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1987)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 1993)

Revista chilena de entomología - Sociedad Chilena de Entomología. (La Universidad, 2000)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1900)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1901)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1902)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1908)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1921)

Revista chilena de historia natural - Museo de Historia Natural de Valparaíso (Valparaíso, Chile) (Litografia e Impr. Industrial (F. Peters), 1923)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2002)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2003)

Revista de la Facultad de Agronomía y Veterinaria, La Plata (La Facultad, 1902)

Revista de la Facultad de Letras y Ciencias - Universidad de La Habana. Facultad de Letras y Ciencias. (Universidad de La Habana, 1905)