Report upon United States Geographical surveys west of the one hundredth meridian - Geographical Surveys West of the 100th Meridian (U.S.) (G.P.O, 1875)

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.], 1854)

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.], 1858)

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 of the Princeton University Expeditions to Patagonia, 1896-1899. J. B. Hatcher in charge - Princeton University Expeditions to Patagonia 1896 -1899 (The University, 1912)

Reports on the progress of zoology and botany, 1841, 1842 - Link, Heinrich Friedrich, 1767 -1851 (Printed for the Ray Society, 1845)

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

A revised catalogue of the birds of Kansas : with descriptive notes of the nests and eggs of the birds known to breed in the state - Goss, N. S. (Nathaniel S.) (Kansas Publishing House, 1886)

A revised catalogue of the birds of Kansas. With descriptive notes of the nests and eggs of the birds known to breed in the state - Goss, N. S. (Nathaniel S.) (Kansas Publishing House, 1886)

A revised list of Cincinnati birds - Langdon, Frank Warren, 1852 -1933 (Barclay, 1879)

Revised list of the vertebrated animals now or lately living in the gardens of the Zoological Society of London. Supplement containing additions received in 1872, 1873, and 1874 - Zoological Society of London. (For the Society, 1875)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1861)

Revista de los Progresos de las Ciencias Exactas Fisicas y Naturales - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Real Academia de Ciencias Exactas, Físicas y Naturales, 1867)

Revista del Museo de La Plata - Universidad Nacional de La Plata. (Talleres del Museo de La Plata, 1893)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1898)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1904)

Revista do Museu Paulista - Museu Paulista (O Museu, 1936)

Revista do Museu Paulista - Museu Paulista (O Museu, 1938)

Revue critique de l'Ornithologie Européenne de M. De Selys Longchamps - Bonaparte, Charles-Lucien, 1803 -1857 (1850)

Revue critique des oiseaux d'Europe - Schlegel, H. (Hermann), 1804 -1884 (A. Arnz et comp.; [etc., etc.], 1844)

Revue des sciences naturelles appliquées - Société nationale d'acclimatation de France (La Société, 1892)

Revue des sciences naturelles de l'ouest - Institut international de bibliographie scientifique. (Revue des sciences naturelles de l'ouest, 1893)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1868)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1911)

Revue française d'ornithologie - Société ornithologique et mammalogique de France. (L. Denise, 1919)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1863)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1880)

Revue méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1898)

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1897)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1905)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1940)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1959)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1963)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1965)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1999)

Revue zoologique - Société Cuvierienne. (Société cuvierienne, 1839)

Revue zoologique - Société Cuvierienne. (Société cuvierienne, 1840)

Revue zoologique - Société Cuvierienne. (Société cuvierienne, 1844)

Rhea - Thienemann, Friedrich August Ludwig, 1793 -1858 (F.A. Brockhaus, 1846)

Richard Archbolds Madagascar journal : Mission zoologique franco-anglo-américaine - American Museum of Natural History (1929)

The Riverside natural history - Kingsley, J. S. (John Sterling), 1854 -1929 (Houghton, Mifflin and company, 1888)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1913)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1912)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1915)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1890)

Rough notes and memoranda relating to the natural history of the Bermudas - Hurdis, John L. (R.H. Porter, 1897)

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1895)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1895)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1893)

The rural cyclopedia, or, A general dictionary of agriculture and of the arts, sciences, instruments, and practice, necessary to the farmer, stockfarmer, gardener, forester, landsteward, farrier, &c - Wilson, John M. (John Marius) (A. Fullarton, 1849)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1987)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1988)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1999)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2005)

Die Säugethiere, Vögel und Amphibien nach ihrer geographischen Verbreitung tabellarisch zusammengestellt - Pompper, Hermann (Verlag der J.G. Hinrichsichen Buchhandlung, 1841)

Die Säugthiere und Vögel Baierns; zum gebrauch als Taschenbuch - Koch, C. L. (Carl Ludwig), 1778 -1857 (Steinische Buchhandlung, 1816)

Scandinavian adventures, during a residence of upwards of twenty years; representing sporting incidents, and subjects of natural history, and devices for entrapping wild animals. With some account of the northern fauna - Lloyd, L. (Llewelyn), 1792? -1876 (R. Bentley, 1854)

Schlesiens Wirbelthier-Fauna : ein systematischer Ueberblick der in dieser Provinz vorkommenden Säugthiere, Vögel, Amphibien und Fische ; mit Rücksicht auf den allgemeinen Character des Landes, so wie auf das locale und quantitative Vorkommen seiner Thiere, namentlich mit Angabe ihres Austeigens auf Berghöhen und ihrer wichtigsten Abänderungen - Gloger, Constantin Wilhelm Lambert, 1803 -1859 (Druck und Verlag von Grass, Barth und Comp, 1833)

Science bulletin - Brooklyn Museum. (Published by the MacMillan Co. for the Institute, 1913)

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Scopus Special Supplement Special Supplement - East Africa Natural History Society.

Scotia illustrata sive Prodromus historiæ naturalis in quo regionis natura, incolarum ingenia & mores, morbi iisque medendi methodus, & medicina indigena accurratè explicantur ... - Colmarius, Johannes (Edinburgh) (ex officinâ typographicâ Jacobi Kniblo, Josuæ Solingensis & Johannis Colmarii, sumptibus auctoris, 1684)