Recensio critica automatica of the doctrine of bird-migration - Herman, Ottó, 1835 -1914 (Printed by order of the Royal Hungarian Ministry of Agriculture, 1905)

Recentioris aevi numismata virorum de rebus medicis et physicis meritorum memoriam servantia - Rudolphi, Karl Asmund, 1771 -1832 (Ferdinandi Dümmleri sumtibus, 1829)

Recherches anatomiques et paléontologiques pour servir à l'histoire des oiseaux fossiles de la France - Milne-Edwards, Alphonse, 1835 -1900 (Victor Masson, 1869)

Recherches sur la faune des régions australes - Milne-Edwards, Alphonse, 1835 -1900 (Masson, 1879)

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)

The record of the celebration of the two hundredth anniversary of the birth of Benjamin Franklin, under the auspices of the American Philosophical Society, held at Philadelphia for promoting useful knowledge, April the seventeenth to April the twentieth, A.D. nineteen hundred and six - American Philosophical Society. (Printed for the American Philosophical Society, 1908)

The Record of zoological literature (J. van Voorst, 1864)

The Record of zoological literature (J. van Voorst, 1865)

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

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

The Record of zoological literature (J. van Voorst, 1868)

The Record of zoological literature (J. van Voorst, 1869)

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, 1961)

Records of the Queen Victoria Museum Launceston - Queen Victoria Museum (Launceston, Tas.) (The Museum, 1991)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1954)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1955)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1956)

Records of the South Australian Museum - South Australian Museum (Published under the authority of the board of governors and edited by the museum director, 1981)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 1998)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 2006)

Records of the Western Australian Museum - Western Australian Museum (Western Australian Museum, 2009)

Recreação filosofica, ou, Dialogo sobre a filosofia natural, para instrucção de pessoas curiosas, que não frequentárão as aulas - Almeida, Theodoro de, 1722 -1804 (Na regia officina typografica, 1786)

Recueil de Voyages et de Mémoires publié de la Société de Geographie - Société de Géographie de Paris. (Société de Géographie, 1830)

Recueil des Actes de la Séance Publique de l'Académie Imperiale des Sciences de St.Petersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (1828)

Recueil des Actes de la Séance Publique de l'Académie Imperiale des Sciences de St.Petersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (1833)

Recueil des bulletins - Société des sciences, lettres et arts de Montpellier. (Société des sciences, lettres et arts de Montpellier, 1803)

Recueil zoologique suisse (H. Geog, 1885)

Regiones terrestres prioritarias de México - Aguilar Zúñiga, Claudia (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2000)

Le règne animal distribué d'après son organisation : pour servir de base a l'histoire naturelle des animaux et d'introduction a l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Chez Déterville, 1817)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Cuvier, Georges, baron, 1769 -1832 (Louis Hauman et Comp, 1836)

Le règne animal distribué d'après son organisation, pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée - Audouin, Jean Victor, 1797 -1841 (Fortin, Masson et cie, 1836)

Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair - Österreichische Akademie der Wissenschaften. (Kaiserlich-Königliche Hof- und Staatsdruckerei; in Commission bei K. Gerold's Sohn, 1869)

Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair - Österreichische Akademie der Wissenschaften. (Kaiserlich-Königliche Hof- und Staatsdruckerei; in Commission bei K. Gerold's Sohn, 1865)

Reise durch die Wueste Atacama :auf Befehl der chilenischen Regierung im Sommer 1853-54 - Philippi, Rodolfo Amando, 1808 -1904 (E. Anton, 1860)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1839)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1841)

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 Nordost-Afrika. Schilderungen aus dem Gebiete der Beni Amer und Habab nebst zoologischen Skizzen und einem Führer für Jagdreisende - Heuglin, Theodor von, 1824 -1876 (G. Westermann, 1877)

Reise nach den Inseln Teneriffa, Trinidad, St. Thomas, St. Crux und Porto-Rico; auf Befehl der franzo¨sischen Regierung, vom 30. Sept. 1796 bis zum 7. Juni 1789, unter der Leitung des Capitain Baudin unternommen - Sonnini, C. S. (Charles Sigisbert), 1751 -1812 (H. Büschler, 1811)

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

Reisen in Britisch-Guiana in den Jahren 1840-1844 : nebst einer Fauna und Flora Guiana's nach Vorlagen von Johannes Müller, Ehrenberg, Erichson, Klotzsch, Troschel, Cabanis und Andern - Ehrenberg, Christian Gottfried, 1795 -1876 (J. J. Weber, 1847)

Reisen in den Vereinigten Staaten, Canada und Mexico - Müller, J. W. von Baron (Johann Wilhelm) 1824 -1866 (F.A. Brockhaus, 1865)

Reisen in Europa, Asien, und Afrika : mit besonderer Rücksicht auf die naturwissenschaftlichen Verhältnisse der betreffenden Länder ; unternommen in den Jahren 1835 bis 1841 - Russegger, Joseph. (E. Schweizerbart'sche Verlagshandlung, 1841)

Reisen in Europa, Asien, und Afrika : mit besonderer Rücksicht auf die naturwissenschaftlichen Verhältnisse der betreffenden Länder ; unternommen in den Jahren 1835 bis 1841 - Russegger, Joseph. (E. Schweizerbart'sche Verlagshandlung, 1848)

Reisen in Nord-ost-Afrika : Schilderungen aus dem gebiete der Beni Amer und Habab nebst zoologischen skizzen und einem führer für jagdreisende - Heuglin, Theodor von, 1824 -1876 (G. Westermann, 1877)

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

Relations de divers voyages curieux : qui n'ont point esté publiées, est qu'on a traduit or tiré des originaux des voyageurs françois, espagnols, allemands, portugais, anglois, hollandois, persans, arabes & autres orientaux. tome premier-second - Moette, Thomas, (Chez Thomas Moette Libraire, ruë de la vieille Bouclerie, à saint Alexis, 1696)

Reliquiae aquitanicae : being contributions to the archaeology and palaeontology of Pèrigord and the adjoining provinces of Southern France - Christy, Henry, 1810 -1865 (Williams, 1875)

Reminiscences of ... the course, the camp, the chase - Meysey-Thompson, Richard Frederick, 1847 -1926 (E. Arnold, 1898)

Rendiconti delle Tornate dell'Accademia Pontaniana - Accademia Pontaniana. (1858)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1842)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1843)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1844)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1847)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1848)

Rendiconto delle adunanze e de' lavori dell'Accademia delle Scienze sezione della Società Reale Borbonica di Napoli - Accademia delle Scienze di Napoli (Società Reale Borbonica, 1849)

Repertorio bibliografico delle pubblicazioni della R. Accademia del scienze di Torino - Accademia delle scienze di Torino (G.B. Paravia, 1883)

Repertorium specierum novarum regni vegetabilis (Selbstverlag des Herausgebers, 1906)

Report - Chicago Natural History Museum. (1906)

Report - Harvard University. Museum of Comparative Zoology. (1862)

Report - Chicago Natural History Museum. (1910)

Report - British Columbia Provincial Museum. (1914)

Report - Chicago Natural History Museum. (1915)

Report - Chicago Natural History Museum. (1900)

Report - British Columbia Provincial Museum. (Printed by W.H. Cullin, 1951)

Report (and Abstracts of Proceedings and Papers) of the Brighton and Sussex Natural History and Philosophical Society - Brighton; Sussex Natural History; Philosophical Society. (1855)

Report of a geological survey of Wisconsin, Iowa, and Minnesota : and incidentally of a portion of Nebraska Territory : made under instructions from the United States Treasury Department - United States. General Land Office. (Lippincott, Grambo & Co, 1852)

Report of a reconnaissance from Carroll, Montana Territory, on the upper Missouri, to the Yellowstone National Park, and return, made in the summer of 1875 - Ludlow, William, 1843 -1901 (Govt. Print. Off, 1876)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1833)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1834)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1835)

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. (1853)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1854)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1856)

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. (1866)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1868)

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. (1871)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1872)

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. (1876)

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. (1878)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1879)

Report of the British Association for the Advancement of Science - British Association for the Advancement of Science. (1899)

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