Report on marine borers and fouling organisms in 56 important harbors and tabular summaries of marine borer data from 160 widespread locations - United States. Bureau of Yards; Docks. (The Bureau, 1951)

Report on the Nemertea collected by H. M. S. Challenger during the years 1873-76 - Hubrecht, A. A. W. (Ambrosius Arnold Willem), 1853 -1915 (1887)

Report on the progress and condition of the United States National Museum - United States National Museum (U.S. Govt. Print. Off, 1947)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1887)

Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares ... and the late Captain Frank Tourle Thomson, R.N - Thomson, C. Wyville, Sir, (Charles Wyville), 1830 -1882 (Neill, 1888)

Reptiles, amphibia, fishes and lower chordata - Boulenger, George Albert 1858 -1937 (Methuen, 1912)

Reptiles of Illinois - Parmalee, Paul W. (Dept. of Registration & Education, 1955)

Research and discoveries : the revolution of science through scuba - Lang, Michael A. (Smithsonian Institution Scholarly Press, 2013)

A revision of the Cotylosauria of North America - Case, E. C. (Ermine Cowles), 1871 -1953 (Carnegie Institution of Washington, 1911)

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

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2016)

Revista de la Academia Canaria de Ciencias - Academia Canaria de Ciencias. (Academia Canaria de Ciencias, 2020)

Revue biologique du nord de la France (Le Bigot, 1893)

Revue critique de paléozoologie - Cossmann, M. (Maurice), 1850 -1924 (M. Cossmann, 1901)

Revue des questions scientifiques - Société scientifique de Bruxelles. (Société scientifique de Bruxelles, 1887)

Revue des travaux scientifiques - France. Ministère de l'Instruction publique (Imprimerie nationale, 1887)

Revue générale des sciences pures et appliquées ([s.n.], 1898)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1906)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1953)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1956)

Revue suisse de zoologie - Muséum d'histoire naturelle de Genève. (Kundig [etc.], 1980)

Rhizocephala - Smith, Geoffrey, 1881 -1916 (R. Friedländer & Sohn, 1906)

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

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

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, 1929)

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, 1934)

The round goby, Neogobius melanostomus (Pallas) : a review of European and North American literature - Charlebois, Patrice M. (Jointly published by the Illinois-Indiana Sea Grant Program and the Illinois Natural History Survey, 1997)

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

The royal natural history - Lydekker, Richard, 1849 -1915 (Frederick Warne & Co, 1893)

The royal natural history - Lydekker, Richard, 1849 -1915 (F. Warne, 1896)

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

The rubber industry in Brazil and the Orient - Akers, Charles Edmond, 1861 -1915 (Methuen & co. ltd, 1914)

The ruffed grouse, its life story, ecology and management - Edminster, Frank C. (Frank Custer), 1903 - (The Macmillan company, 1947)

Salpa in its relation to the evolution of life - Brooks, William Keith, 1848 -1908 (Johns Hopkins Press, 1893)

Sandgrouse - Ornithological Society of the Middle East. (OSME, 2000)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 1986)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 1997)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 1998)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2002)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2003)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2004)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2014)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2015)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2016)

Science - American Association for the Advancement of Science. ([s.n.], 1884)

Science - American Association for the Advancement of Science. ([s.n.], 1887)

Science - American Association for the Advancement of Science. ([s.n.], 1895)

Science - American Association for the Advancement of Science. ([s.n.], 1897)

Science - American Association for the Advancement of Science. ([s.n.], 1898)

Science - American Association for the Advancement of Science. ([s.n.], 1899)

Science - American Association for the Advancement of Science. ([s.n.], 1903)

Science - American Association for the Advancement of Science. ([s.n.], 1905)

Science - American Association for the Advancement of Science. ([s.n.], 1906)

Science - American Association for the Advancement of Science. ([s.n.], 1908)

Science - American Association for the Advancement of Science. ([s.n.], 1912)

Science - American Association for the Advancement of Science. ([s.n.], 1915)

Science - American Association for the Advancement of Science. ([s.n.], 1919)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1894)

The science of biology - Beaver, William C. (William Carl), 1896 - (C.V. Mosby Co, 1952)

The science of biology - Weisz, Paul B., 1921 - (McGraw-Hill, 1963)

Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen - Fowler, G. Herbert (George Herbert), 1861 -1940 (John Murray, 1912)

Science of the sea, an elementary handbook of practical oceanography for travellers, sailors, and yachtsmen - Fowler, G. Herbert (George Herbert), 1861 -1940 (Murray, 1912)

Science progress (John Murray, 1917)

Science progress - Burdett, Henry C., Sir, 1847 -1920 (Scientific Press, 1895)

Science progress (John Murray, 1919)

Science progress (John Murray, 1920)