Rocky mountain flowers; an illustrated guide for plantlovers and plant-users - Clements, Frederic E. (Frederic Edward), 1874 -1945 (the H.W. Wilson company, 1914)

Rocky Mountain wild flower studies; an account of the ways of some plants that live in the Rocky Mountain region - Longyear, Burton Orange, 1868 - (Merchants Publishing Co, 1909)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1937)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1982)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1985)

The role of wetland soils in nitrogen and phosphorus removal from agricultural drainage water - Duangporn Sompongse, 1954 - (1982)

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)

Root development in the grassland formation, a correlation of the root systems of native vegetation and crop plants - Weaver, John E. (John Ernest),‏ ‎ 1884 -1966 (Carnegie inst. of Washington, 1920)

Root development of field crops - Weaver, John E. (John Ernest),‏ ‎ 1884 -1966 (McGraw-Hill book company, inc, 1926)

Rootrots and leafspots of grains and grasses in the northern Great Plains and western states - United States. Plant Disease Survey. (Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1946)

The rough-winged swallow, Stelgidopteryx ruficollis (Vieillot); a study based on its breeding biology in Michigan - Lunk, William A (Nuttall Ornithological Club, 1962)

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, 1850)

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)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1869)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1885)

Sable Island, with a catalogue of its vascular plants - St. John, Harold, 1892 -1991 (Gray Herbarium of Harvard University, 1921)

Saier's garden magazine : a manual of rare flowers, their selection and culture. Vol. 3, no. 7 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harry E. Saier, 1954)

Saline seep plant materials program : Annual report, 1977 - Old West Regional Commission. (Montana Dept. of State Lands, 1977)

Samen-Verzeichnis des Staatl. Botanischen Gartens zu Dresden - Technische Universität Dresden. Botanischer Garten. (Koeniglich Botanischer Garten zu Dresden, 1937)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation in Erie county, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Clapper, 1899)

Sandusky flora. A catalogue of the flowering plants and ferns growing without cultivation, in Erie County, Ohio, and the peninsula and islands of Ottawa County - Moseley, Edwin Lincoln, 1865 -1948 (Press of Clapper Printing Co, 1899)

Schilderung der deutschen Pflanzenfamilien; vom botanisch-descriptiven und physiologisch-chemischen Standpunkte - Hoffmann, Hermann, 1819 -1891 (Wirth, 1851)

Schilderung der deutschen pflanzenfamilien vom botanisch-descriptiven und physiologischchemischen standpunkte - Hoffmann, Hermann, 1819 -1891 (Georg Friedrich Hener's Verlag, 1846)

Schule der systematischen Botanik - Hallier, Ernst, 1831 -1904 (W.G. Korn, 1878)

Science - American Association for the Advancement of Science. ([s.n.], 1883)

Science - American Association for the Advancement of Science. ([s.n.], 1893)

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.], 1901)

Science - American Association for the Advancement of Science. ([s.n.], 1902)

Science - American Association for the Advancement of Science. ([s.n.], 1904)

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.], 1910)

Science - American Association for the Advancement of Science. ([s.n.], 1911)

Science - American Association for the Advancement of Science. ([s.n.], 1916)

Science - American Association for the Advancement of Science. ([s.n.], 1920)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1899)

Science guide - American Museum of Natural History (The Museum, 1944)

Scientific papers of Asa Gray - Gray, Asa, 1810 -1888 (Houghton, Mifflin, 1889)

Scientific papers of Asa Gray - Gray, Asa, 1810 -1888 (Houghton, 1889)

Scottish bird news - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1988)

Scrinia florae selectae - Magnier, Charles.

Sea anemones through X-rays : visualization of two species of Diadumene (Cnidaria, Actiniaria) using micro-CT - Rodríguez, Estefanía (American Museum of Natural History, 2018)

The sea shore, by W.S. Furneaux ... With eight plates in colour and over three hundred illustrations in the text - Furneaux, William S. (Longmans, Green and Co, 1922)

Seaside planting for shelter, ornament, & profit - Webster, A. D. (Angus Duncan), 1855 -1931 (T. Fisher Unwin, 1918)

The Seaside sparrow, its biology and management : proceedings of a symposium held at Raleigh, North Carolina 1-2 October 1981 - U.S. Fish; Wildlife Service (The Survey, 1983)

A season among the wildflowers - Wood, Henry. (.W. S. Sonnenschein, 1883)

Seaweeds of the southeastern United States : Cape Hatteras to Cape Canaveral - Schneider, Craig W (Duke University Press, 1991)

Seeds and plants imported during the period from December, 1903, to December, 1905; inventory no. 11, nos.9897 to 16796 ... - United States. Bureau of Plant Industry. (Gov't. Print. Off, 1907)

Seeds and plants imported - United States. Department of Agriculture. (G.P.O, 1907)

Seeds and plants imported - United States. Department of Agriculture. (G.P.O, 1909)

Select extra-tropical plants : readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select extra-tropical plants, readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (T. Richards, government printer, 1881)

Select extra-tropical plants readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (Off. of the superintendent of government printing, 1880)

Select extra-tropical plants readily eligible for industrial culture or naturalisation, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (Off. of the Superintendent of Government Printing, 1880)

Select extra-tropical plants readily eligible for industrial culture or naturalization, with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (G.S. Davis, 1884)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (C. Troedel and Co, 1891)

Select extra-tropical plants readily eligible for industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (1895)

Select extra-tropical plants readily eligible for Victorian industrial culture or naturalisation with indications of their native countries and some of their uses - Mueller, Ferdinand von, 1825 -1896 (J. Ferres, 1885)

Select plants (exclusive of timber trees) readily eligible for Victorian industrial culture with indications of their native countries and some of their uses; an enumeration - Mueller, Ferdinand von, 1825 -1896 (s.n, 1872)

Select plants readily eligible for industrial culture or naturalisation in Victoria - Mueller, Ferdinand von, 1825 -1896 (Printed for the government of Victoria by McCarron, Bird & co, 1876)

A Selected bibliography of insect-vascular plant associational studies - Kingsolver, John M. (U.S. Dept. of Agriculture, Agricultural Research Service, 1984)

A selected bibliography of insectvascular plant associational studies - Sanderson, Milton W. (Milton William) (Agricultural Research Service, U.S. Dept. of Agriculture, 1967)

A selected bibliography of the nearshore environment : Florida west coast : prepared for U.S. Army, Corps of Engineers, Coastal Engineering Research Center - Coastal Engineering Research Center (U.S.) (Coastal Engineering Research Center, 1975)

A selected bibliography on management of western ranges, livestock, and wildlife - Renner, Frederic Gordon, 1897 - (U.S. Dept. of Agriculture, 1938)

Selected botanical papers - Knobloch, Irving W. (Irving William), 1907 - (Prentice-Hall, 1963)

Selected vertebrate endangered species of the seacoast of the United States - Biological Services Program (U.S.) (The Service : [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1980)

A selection of the correspondence of Linnaeus and other naturalists, from the original manuscripts - Smith, James Edward, 1759 -1828 (Longman, Hurst, Rees, Orme, and Brown, 1821)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1904)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1905)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1907)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1909)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1910)

Semillas recolectadas durante ano ... y que se ofrecen a cambio de otras - Universidad de Valencia. Jardin Botanico. (Imprenta de Manuel Alufre, 1912)

Sensitive plant species inventory in the Centennial Valley, Beaverhead County, Montana - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1993)

Sensitive species of Nevada : 1990 report : Bureau of Land Management, Battle Mountain District - Clemmer, Glenn H. (Nevada Natural Heritage Program, 1990)

Shells and sea life - Long, Steven J. (Miranda Enterprises, 1987)

sheng tai xue yuan li he ye wai sheng wu xue - Smith, Robert Leo 1925 - (ke xue chu ban she, 1988)

sheng wu duo yang xing yan jiu de yuan li yu fang fa - Zhongguo ke xue yuan. Sheng wu duo yang xing wei yuan hui (zhong guo ke xue ji shu chu ban she, 1994)

sheng wu duo yang xing yi cong - Zhongguo ke xue yuan. Sheng wu duo yang xing wei yuan hui (zhong guo ke xue chu ban she, 1992)

sheng wu ming cheng he sheng wu xue shu yu de ci yuan - Jaeger, Edmund C. (Edmund Carroll) 1887 -1983 (ke xue chu ban she, 1979)

sheng wu quan de di yi xing sheng chan li - Lieth, Herbert. (ke xue chu ban she, 1985)

shi di sheng wu duo yang xing bao hu - Zhao, Guiyi, Chen Yifeng, Lou Yanjing, Sui Xiao Yunyan & Yun Zhi (zhong guo lin ye chu ban she, 2008)

Shore stabilization with salt marsh vegetation - Coastal Engineering Research Center (U.S.) (U.S. Army, Corps of Engineers, Coastal Engineering Research Center, 1983)