A report upon the condition of affairs in the territory of Alaska - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1875)

Reports and transactions - Cardiff Naturalists' Society.

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 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.], 1859)

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.], 1860)

Reports on fisheries investigations in Hudson and James bays and tributary waters in 1914 - Comeau, Napoleon A. (Napoleon Alexander), 1848 -1923 (J. de L. Taché, 1915)

Reptiles and birds : a popular account of their various orders, with a description of the habits and economy of the most interesting - Figuier, Louis, 1819 -1894 (Cassell, Petter, Galpin)

Résultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco ... - Albert I, Prince of Monaco, 1848 -1922 (Impr. de Monaco, 1912)

Résultats du voyage du S.Y. Belgica en 1897-1898-1899 : sous le commandement de A. de Gerlache de Gomery. Rapports scientifiques publiés aux frais du gouvernement belge, sous la direction de la Commission de la Belgica - Belgica (Ship) (Impr. J.E. Buschmann, 1904)

Results of the second joint U.S.-U.S.S.R. Bering Sea Expedition Summer 1984 - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, U.S. Fish and Wildlife Service, 1990)

Results of the third joint US-USSR Bering & Chukchi Seas expedition (BERPAC) : Summer 1988 - U.S. Fish; Wildlife Service (U.S. Fish and Wildlife Service, 1992)

A revision of the family Laridae (Aves) - Moynihan, M. (American Museum of Natural History, 1959)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1914)

Revista do Museu Paulista - Museu Paulista (Museu Paulista, 1918)

Revue bryologique et lichenologique - Muséum national d'histoire naturelle (France) (Museum national d'histoire naturelle, 1979)

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

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1855)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1857)

Revue et magasin de zoologie pure et appliquée - Société Cuvierienne. (Bureau de la Revue et Magasin de Zoologie, 1860)

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, 1921)

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 suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1917)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1948)

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

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 2008)

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 scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1893)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1888)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1894)

Rochester and district; a sketch-guide to its geology, flora, & fauna - Hepworth, J. (Parrett & Neves, 1913)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1950)

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

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1896)

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

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

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1896)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1899)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1900)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1902)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1903)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1905)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1906)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1907)

Sand dunes and salt marshes - Townsend, Charles Wendell, 1859 -1934 (D. Estes & company, 1913)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 1986)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2003)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2009)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2012)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2014)

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

Scientific memoirs (1846)

Scottish bird report - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1978)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1966)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1993)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2013)

The Scottish naturalist (T. Buncle & Co. [etc.], 1913)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1881)

The Scottish naturalist (T. Buncle & Co. [etc.], 1918)

The Scottish naturalist (T. Buncle & Co. [etc.], 1919)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1991)

The Scottish naturalist (T. Buncle & Co. [etc.], 1930)

The Scottish naturalist (T. Buncle & Co. [etc.], 1932)

The Scottish naturalist (T. Buncle & Co. [etc.], 1934)

The Scottish naturalist (T. Buncle & Co. [etc.], 1938)

The Scottish naturalist (T. Buncle & Co. [etc.], 1939)

The Scottish naturalist (T. Buncle & Co. [etc.], 1951)

Sea and inland fisheries: report - Ireland. Dept. of Fisheries. (Stationery Off, 1912)

Sea-birds : an introduction to the natural history of the sea-birds of the North Atlantic - Fisher, James, 1912 - (Houghton, Mifflin, 1954)

The Sea swallow - Royal Naval Bird Watching Society. (Printed by W. Spurrell for the Royal Naval Bird Watching Society, 1947)

Seal and salmon fisheries and general resources of Alaska - Jordan, David Starr, 1851 -1931 (Govt. Printing Office, 1898)

The seal-islands of Alaska - Elliott, Henry Wood, 1846 -1930 (Govt. Print. Off, 1881)

Skandinaviens fugle, med særligt hensyn til Danmark og de nordlige bilande - Grönvold, Henrik, 1858 -1940 (L.A. Jørgensen, 1875)

Sketch-book of British birds - Sharpe, Richard Bowdler, 1847 -1909 (Society for Promoting Christian Knowledge, 1898)

A sketch of the natural history (vertebrates) of the British Islands : With a concise bibliography of popular works relating to the British fauna, and a list of field clubs and natural history societies in the United Kingdom - Aflalo, Frederick G. (Frederick George), 1870 -1918 (W. Blackwood and Son, 1898)

A sketch of the natural history (vertebrates) of the British Islands. With a concise bibliography of popular works relating to the British fauna, and a list of field clubs and natural history societies in the United Kingdom - Aflalo, Frederick G. (Frederick George), 1870 -1918 (W. Blackwood and Son, 1898)

Skogsvårdsföreningens tidskrift - Föreningen för skogsvård (Sweden) (Centraltryckeriet, 1905)

Skogsvårdsföreningens tidskrift - Föreningen för skogsvård (Sweden) (Centraltryckeriet, 1906)

Skogsvårdsföreningens tidskrift - Föreningen för skogsvård (Sweden) (Centraltryckeriet, 1907)

Skrifter utgit av Videnskapsselskapet i Kristiania. I, Matematisk-naturvidenskabelig klasse - Christiania videnskabs-selskab. I–Math.-naturv. klasse. (I Kommission hos J. Dybwad, 1914)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1859)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1878)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1881)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1912)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1916)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1959)

Society for the Protection of Birds : educational series - Royal Society for the Protection of Birds (The Society's Publishing Office, 1896)

Somerset archaeology and natural history : the proceedings of the Somerset Archaeological and Natural History Society - Somerset Archaeological; Natural History Society. (Somerset Archaeological and Natural History Society, 1851)

Special papers - Ohio Academy of Science. (The Academy, 1903)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1969)

Species list of Alaskan birds, mammals, fish, amphibians, reptiles, and invertebrates - United States. Forest Service. (Department of Agriculture, Forest Service, Alaska Region, 1979)

Species taxa of North American birds; a contribution to comparative systematics - Mayr, Ernst, 1904 -2005 (The Club, 1970)

The sportsman's British bird book - Lydekker, Richard, 1849 -1915 (Rowland Ward, 1908)