Rhopalocera Europæ, descripta et delineata = The butterflies of Europe, described and figured - Lang, Henry C. (L. Reeve, 1884)

Rhopalocera nihonica: a description of the butterflies of Japan - Bisset, James. (Printed at the Office of the "Japan mail", Published by the author, 1888)

Rhopalocera nihonica: a description of the butterflies of Japan - Pryer, H. (Henry), 1850 -1888 (Office of the "Japan mail": pub. by the author, 1886)

Richardiana (Tropicalia, 2007)

Richardson & Gould's seed catalogue. : American Agriculturist Building, no. 245 Broadway, Post Office address, P.O. Box 5134, New York - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Perris & Browne, printers, 164 Fulton Street, 1872)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1906)

RNA fen li yu jian ding shi yan zhi nan RNA yan jiu fang fa - Farrell, Robert E. (hua xue gong ye chu ban she, 2008)

Die rohstoffe des pflanzenreiches; versuch einer technischen rohstofflehre des pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1903)

Die Rohstoffe des Pflanzenreiches; Versuch einer technischen Rohstofflehre des Pflanzenreiches, unter Mitwirkung von Max Bamberger [et. el.] - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1900)

Die Rohstoffe des Pflanzenreiches; Versuch einer technischen Rohstofflehre des Pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1914)

Die Rohstoffe des Pflanzenreichs : versuch einer Technischen Rohstofflehre des Pflanzenreiches - Wiesner, Julius, 1838 -1916 (W. Engelmann, 1921)

Root-knot and its control - Bessey, Ernst Athearn, 1877 -1957 (Govt. print. off, 1911)

Rovartani lapok : havi folyóirat különös tekintettel a hasznos és kártékony rovarokra - Magyar Entomologiai Társaság. (Magyar Entomologiai Társaság, 1909)

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.], 1855)

Russkoe entomologicheskoe obozrenie = Revue russe d'entomologie - Russkoe entomologicheskoe obshchestvo (Russkoe entomologicheskoe obshchestvo, 1907)

Russkoe entomologicheskoe obozrenie = Revue russe d'entomologie - Russkoe entomologicheskoe obshchestvo (Russkoe entomologicheskoe obshchestvo, 1908)

Russkoe entomologicheskoe obozrenie = Revue russe d'entomologie - Russkoe entomologicheskoe obshchestvo (Russkoe entomologicheskoe obshchestvo, 1910)

Rust, smut, mildew, & mould : an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (R. Hardwicke, 1865)

Rust, smut, mildew & mould. An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W. H. Allen, 1902)

Rust, smut, mildew & mould : An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Hardwicke and Bogue, 1878)

Rust, smut, mildew, & mould; an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (Hardwicke and Bogue, 1878)

Rust, smut, mildew, & mould : an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (R. Hardwicke, 1872)

Rust, smut, mildew & mould ; an introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W.H. Allen, 1898)

Rust, smut, mildew & mould. An introduction to the study of microscopic fungi - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (W. H. Allen, 1886)

The rusts of Australia, their structure, nature, and classification - McAlpine, Daniel, 1848 -1932 (Brain, 1906)

The rusts of Australia their structure, nature and classification - Victoria. Dept. of Agriculture. (Robt. S. Brain, government printer, 1906)

The sagacity & morality of plants; a sketch of the life & conduct of the vegetable kingdom - Taylor, J. E. (John Ellor), 1837 -1895 (Chatto and Windus, 1884)

Saggio sulle qualita` medicinali delle piante della flora Napolitana : e sulla maniera di servirsene per surrogarle alle droghe esotiche - Tenore, Michele, 1780 -1861 (Tipografia Coda, 1808)

Samen-Tauschverzeichnis des Botanschen Gartens der Universität Graz - Universität Graz. Botanischer Garten. (Verlag des Instituts für systematische Botanik der Universität Graz, 1937)

Samen- und Pflanzen-Tauschliste des botanischen Gartens der Kgl. Technischen Hochschule Stuttgart - Technische Hochschule Stuttgart. Botanischer Garten. (Technische Hochschule in Stuttgart, 1928)

Samen-Verzeichnis des Botanischen Gartens der Stadt Köln am Rhein - Flora und Botanischer Garten Köln. ([Flora und Botanischer Garten Köln], 1906)

Samen-Verzeichnis des Botanischen Gartens der Stadt Köln am Rhein - Flora und Botanischer Garten Köln. ([Flora und Botanischer Garten Köln], 1907)

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

Sargentia :a continuation of the contributions from the Arnold Arboretum of Harvard University - Arnold Arboretum. (The Arnold Arboretum of Harvard University, 1943)

Die Schmetterlinge der Schweiz - Müller-Rutz, J. (K.J. Wyss, 1911)

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Die Schmetterlinge Deutschlands mit besonderer Berücksichtigung ihrer Biologie - Eckstein, Karl, 1859 -1930 (K.G. Lutz' Verlag, 1913)

Die Schmetterlinge Deutschlands mit besonderer Berücksichtigung ihrer Biologie - Eckstein, Karl, 1859 -1930 (K.G. Lutz' Verlag, 1923)

Die Schmetterlinge Europas - Hofmann, Ernst, 1837 -1892 (E. Schweizerbart, 1908)

Die Schmetterlinge in Abbildungen nach der Natur - Sturm, Jakob, 1771 -1848 (T.O. Weigel, 1829)

Die schmetterlinge von Europa - Ochsenheimer, Ferdinand, 1767 -1822 (Fleischer, 1807)

Schriften der Königlichen Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Königliche Physikalisch-Ökonomische Gesellschaft zu Königsberg. (In Commission bei Gräfe und Unzer, 1872)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1895)

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Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1892)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1899)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1905)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1897)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1873)

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

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

Science progress (John Murray, 1919)

Science progress (John Murray, 1920)

The Scientific proceedings of the Royal Dublin Society - Royal Dublin Society. (The Society, 1909)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1960)

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

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1988)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2012)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1871)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1873)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1875)

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

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1883)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1987)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1885)

The Scottish naturalist - Perthshire Society of Natural Science. (Cowan & Co. [etc.], 1887)

The Scottish naturalist (T. Buncle & Co. [etc.], 1949)

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

The Scottish naturalist (T. Buncle & Co. [etc.], 1952)

The Scottish naturalist (T. Buncle & Co. [etc.], 1955)

The Scottish naturalist (T. Buncle & Co. [etc.], 1961)

Seattle Seed Co.'s annual priced catalogue for 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seattle Seed Company, 1910)

Seattle Seed Company's complete catalogue of seeds, poultry supplies, etc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seattle Seed Company, 1907)

Seed annual 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seattle Seed Co, 1911)

Seed annual 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seattle Seed Co, 1920)

Seed annual 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Seattle Seed Co, 1921)

Seed list : a list of forage plant seeds and the incidental seeds commonly found with them - Hillman, F. H. (Division of Seed Investigations, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1935)

Seed list : a list of forage plant seeds and the incidental seeds commonly found with them - United States. Division of Seed Investigations. (Division of Seed Investigations, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1935)

Seed trade buyers guide, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1943)

Seed trade buyers guide, 1944 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (1944)

Seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Herb Centre, 1938)

Seeds, bulbs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Stumpp & Walter Company, 1898)

Seeds handbook for agriculture, horticulture and forestry, with a key for the identification of the important agricultural seeds = Handbuch der Samenkunde für Landwirtschaft, Gartenbau und Forstwirtschaft, mit einem Schlussel zur Bestimmung der wichtigsten landwirtschaftlichen Samen - Stahlin, Adolf. ([publisher not identified], 1980)

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)

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

Selectus e seminario Horti Botanici Cracoviensis - Uniwersytet Jagielloński. Ogród Botaniczny. (Hort Botanici Gracoviensis, 1913)

Selectus seminum anno ... collectorum quae Hortus Botanicus Posnaniensis mutuo commutanda offert - Ogród farmakognostyczny w Poznaniu. (Akademii Medycznej W Poznaniu, 1928)

Selectus seminum anno ... collectorum quae Hortus Botanicus Posnaniensis mutuo commutanda offert - Ogród farmakognostyczny w Poznaniu. (Akademii Medycznej W Poznaniu, 1929)

Sensitive plant survey in the Tobacco Root Mountains, Madison County, Montana, Beaverhead and Deerlodge National Forests - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Sensitive, threatened, and endangered vascular plants of Montana - Lesica, Peter. (Montana Natural Heritage Program, Montana State Library, 1991)

Service and regulatory announcements - United States. Office of Experiment Stations. (U.S. G.P.O, 1937)

Sex and internal secretions - Allen, Edgar, 1892 -1943 (Williams & Wilkins, 1961)

Sex-determination - Crew, F. A. E. (Francis Albert Eley), 1888 -1973 (Methuen, 1954)

Shakespeare's garden - Bloom, J. Harvey (James Harvey), 1860 -1943 (J.B. Lippincott co, 1903)

shan dong jing ji zhi wu zhi 山东经济植物志 - shan dong jing ji zhi wu bian xie zu山东经济植物编写组 (shan dong ren min chu ban she山东人民出版社, 1978)

shan xi qing mu chuan zi ran bao hu qu de sheng wu duo yang xing 陕西青木川自然保护区的生物多样性 - jiang zhi gang zhu bian 蒋志刚主编 (qing hua da xue chu ban she 清华大学出版社)

shan xi sheng jing ji zhi wu zhi - Li, Huimin (zhong guo lin ye chu ban she, 1990)

shang hai ye sheng zhi wu - Qian, Shixin, Liu Mingzhuang & Shun Qingsheng (shang hai ke xue ji shu chu ban she)

shen nong jia zhi wu 神农架植物 - Zhongguo ke xue yuan. Wuhan zhi wu yan jiu suo 中国科学院武汉植物 研究所 (hu bei ren min chu ban she 湖北人民出版社, 1980)

sheng tai xi tong guan li ke xue yu she hui wen ti - Maltby, Edward. (ke xue chu ban she, 2003)

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

shi yong zhi wu tu shuo 实用植物图说 - Zhu, Xifang 朱羲方 (xin xue hui she 新学会社, 1920)

Shokubutsu-mei-i - Matsumura, Jinzo, 1856 -1928 (Maruzen Company, Ltd, 1916)

A short flora of Berwickshire - Braithwaite, Michael E. (M.E. Braithwaite, 2014)

si bai zhong zhu si liao zhi wu he ta me de ying yang jia zhi - Dong, Heng & Zhang Zhongge (nong yin chu ban she)

Siegfried Jacoby Family Collection - Bunzl, Thomas

Sinonimia vulgar y científica de las plantas mexicanas - Alcocer, Gabriel V., (Secretaría de Fomento, 1902)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1907)

Sitzungsberichte. Abt. 1, Mineralogie, Krystallographie, Botanik, Physiologie der Pflanzen, Zoologie, Paläontologie, Geologie, physische Geographie und Reisen - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1909)

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft Naturforschender Freunde, 1912)

Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft Naturforschender Freunde, 1917)

Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse. Abt. 3, Anatomie und Physiologie des Menschen und der Tiere sowie aus jenem der theoretischen Medizin - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (K.-K. Hof- und Staatsdruckerei in Kommission bei A. Hölder, 1909)