Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1929)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1930)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1931)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1932)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1943)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1944)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1947)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1954)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1956)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1957)

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

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1961)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1960)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1962)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1966)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1967)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1968)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1971)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1970)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1973)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1974)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1975)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1976)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1977)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1978)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1979)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1980)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1981)

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 ... - Smithsonian Institution (For sale by the Supt. of Docs., U.S. G.P.O, 1982)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1985)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1986)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1987)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1989)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1990)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1992)

Some aspects of the biting fly problem in Canadian Sub Arctic Regions - Hocking, Brian, 1914 -1974 (University of Alberta, 1949)

Some unusual natural areas in Illinois - Evers, Robert A. (Robert August), 1912 - (Illinois Natural History Survey, 1977)

South African journal of science - South African Association for the Advancement of Science. (South African Association for the Advancement of Science, 1915)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2002)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2015)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2017)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2018)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2019)

Spanische Dipteren - Strobl, Gabriel, 1846 -1925 (s.n, 1906)

Spanische Dipteren - Strobl, Gabriel, 1846 -1925 (s.n, 1909)

Special scientific report Wildlife - U.S. Fish; Wildlife Service (The Service, 1962)

Species abundance relationships of aquatic insects in monotypic waterhyacinth communities in Florida : with special emphasis on factors affecting diversity - Balciunas, Joseph Kestutis, 1946 - (1977)

Spixiana Supplement - Zoologische Staatssammlung München. (Zoologische Staatssammlung München, 2001)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1980)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1982)

Spixiana Supplement - Zoologische Staatssammlung München. (Zoologische Staatssammlung München, 1992)

Spixiana Supplement - Zoologische Staatssammlung München. (Zoologische Staatssammlung München, 1996)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1989)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1993)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1997)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 2000)

Spolia zeylanica - Colombo Museum (Colombo Museum, 1903)

Spolia zeylanica - Colombo Museum (Colombo Museum, 1904)

Spolia zeylanica - Colombo Museum (Colombo Museum, 1909)

Sprawozdanie Komisyi Fizyograficznej (1892)

Sprawozdanie Komisyi Fizyograficznej (1893)

Sprawozdanie Komisyi Fizyograficznej (1896)

Stream monitoring manual - Illinois. Division of Energy; Environmental Assessment. (Illinois Dept. of Natural Resources, Office of Realty and Environmental Planning, Division of Energy and Environmental Assessment, 1998)

Stream monitoring manual - Illinois. Division of Energy; Environmental Assessment. (Illinois Dept. of Natural Resources, Office of Realty and Environmental Planning, Division of Energy and Environmental Assessment, 1997)

Stream monitoring manual - Illinois RiverWatch Network. (Illinois Dept. of Natural Resources, 1995)

The structure and life-history of the harlequin fly (Chironomus) - Miall, L. C. (Louis Compton), 1842 -1921 (Clarendon Press, 1900)

Structure, general characteristics, and salinity relationships of benthic macroinvertebrate associations in streams draining the southern Fort Union coalfield region of southeastern Montana - Geological Survey (U.S.) (Water Quality Bureau, Billings Regional Office, Environmental Sciences Division, Montana Dept. of Health and Environmental Sciences, 1980)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and co, 1898)

A student's text-book of zoology - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (S. Sonnenschein and Co., ltd, 1909)

Studi di uno zoologo sulla malaria - Grassi, Battista, 1854 -1925 (R. Accademia dei lincei, 1901)

Studien über Entwickelungsgeschichte der Tiere - Selenka, Emil, 1842 -1902 (Kreidel, 1913)

Studien über südostasiatische Dipteren - Meijere, J. C. H. de (Johannes Cornelis Hendrik) 1866 -1947 (s.n, 1910)

Studien über südostasiatische Dipteren - Meijere, J. C. H. de (Johannes Cornelis Hendrik) 1866 -1947 (s.n, 1909)

Studies from the Institute for Medical Research, Federated Malay States ... - Kuala Lumpur (Malaysia). Institute for Medical Research. (1908)

Studies in zoology : an introduction to the study of animals for secondary schools and academies - Merrill, James Andrew. (American Book, 1902)

A study of the invertebrates and fishes of salt marshes in two Oregon estuaries - Coastal Engineering Research Center (U.S.) (The Center, 1981)

Stuttgarter Beiträge zur Naturkunde Serie A Biologie - Staatliches Museum für Naturkunde in Stuttgart. (Staatliches Museum für Naturkunde, 1977)