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

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, 1862)

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 méthodique et critique des collections déposées dans cet établissement - Rijksmuseum van Natuurlijke Historie te Leiden. (Rijksmuseum van Natuurlijke Historie, 1894)

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

Revue scientifique du Bourbonnais et du centre de la France - Olivier, Ernest, 1844 -1914 (Impr. É. Auclaire, 1908)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1903)

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.], 1997)

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

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

Revue zoologique - Société Cuvierienne. (Société cuvierienne, 1845)

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 ring of nature - Desmond, G. G. (Methuen, 1913)

Riverside letters; a continuation of "Letters to Marco" - Leslie, George Dunlop, 1835 -1921 (Macmillan and co., ltd, 1896)

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, 1912)

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, 1915)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1918)

Rivista italiana di ornitologia - Museo civico di storia naturale di Milano. (Società italiana di scienze naturali, 1920)

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, 1890)

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)

Rocky Mountain front raptor survey, December 1982-August 1984 - U.S. Fish; Wildlife Service (Montana Dept. of Fish, Wildlife and Parks, 1984)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1902)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1907)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1909)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1910)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1911)

Rod and gun - Canadian Forestry Association. (Rod and Gun Pub. Co. [etc.], 1916)

Roman farm management; the treatises of Cato and Varro done into English, with notes of modern instances by a Virginia farmer - Harrison, Fairfax, 1869 -1938 (Macmillan, 1918)

The romance of bird life : being an account of the education, courtship, sport and play, journeys, fishing, fighting, piracy, domestic and social habits, instinct, strange friendships and other interesting aspects of the life of birds - Lea, John. (Seeley & Co, 1909)

The romance of the Apothecaries' garden at Chelsea - Drewitt, F. Dawtrey (Frederic Dawtrey), 1848 - (Chapman and Dodd, 1922)

Roosevelt wild life annals - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (Roosevelt Wild Life Forest Experiment Station, 1932)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1921)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1923)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1925)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1929)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1930)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1935)

Roosevelt wild life bulletin ... of the Roosevelt Life Forest Experiment Station of the New York College of Forestry at Syracuse University - New York State College of Forestry at Syracuse University. Roosevelt Wild Life Forest Experiment Station. (The University, 1937)

Roses : the best of old, new and patented varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rosemont Nurseries, 1958)

Roses : the best of old, new and patented varieties - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rosemont Nurseries, 1959)

Rotunda - American Museum of Natural History (American Museum of Natural History, 1986)

Rotunda - American Museum of Natural History (American Museum of Natural History, 1998)

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