Rhodora - Robinson, Benjamin Lincoln, 1864 -1935 (New England Botanical Club [etc.], 2004)

Riley grazing management program : draft environmental impact statement - United States. Bureau of Land Management. Oregon State Office. (U.S. Department of the Interior, Bureau of Land Management, Oregon State Office, 1982)

Riparian and wetland community inventory of 14 reference areas in southwestern Idaho - United States. Bureau of Land Management. (Bureau of Land Management, Idaho State Office, 1998)

Riparian and wetland plant associations of southwestern Idaho : with a focus on the Bureau of Land Management's Lower Snake River District - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, National Science and Technology Center, Information and Communications Group, 2001)

Rivista di patologia vegetale - Istituto di patologia vegetale (Università di Milano) (Tipografia del Seminario, 1894)

Rivista di patologia vegetale - Istituto di patologia vegetale (Università di Milano) (Tipografia del Seminario, 1920)

Rivista italiana di scienze naturali : periodico mensile premiato alle esposizioni nazionali di Palermo e di Milano ed a quella internazionale di Chicago (Ufficio, 1894)

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

Rock River area assessment - Illinois. Dept. of Natural Resources. (Illinois Dept. of Natural Resources, 1996)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 1980)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2006)

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)

The Romance of wild flowers : a companion to the British flora - Step, Edward, 1855 -1931 (Warne, 1899)

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, 1940)

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)

Rose Hill Nursery, 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rose Hill Nursery, 1932)

Rose Hill Nursery, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rose Hill Nursery, 1935)

The rough fescue dominated community types in the foothills of north-central Alberta - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, Public Lands Division, 2001)

Rovartani lapok : havi folyóirat különös tekintettel a hasznos és kártékony rovarokra - Magyar Entomologiai Társaság. (Magyar Entomologiai Társaság, 1906)

Rovartani lapok : havi folyóirat különös tekintettel a hasznos és kártékony rovarokra - Magyar Entomologiai Társaság. (Magyar Entomologiai Társaság, 1907)

Rozpravy české akademie císaře Františka Josefa pro vědy, slovesnost a umění Třída II Mathematicko-přírodnicka - Česka akademie Císaře Františka Josefa pro vědy slovenost a umění. Třida II: Mathematicko-přírodnická. (1891)

Rubber and resin content of native and introduced plants of Canada - Minshall, William Harold, 1911 - (Canada Dept. of Agriculture, 1900)

Rubber-content of North American plants - Hall, Harvey Monroe, 1874 -1932 (1921)

Rubber-content of North American plants - Hall, Harvey Monroe, 1874 -1932 (Carnegie Institution of Washington, 1921)

Rubber-content of North American plants by Harvey M. Hall and Frances L. Long - Hall, Harvey Monroe, 1874 -1932 (Carnegie Institution of Washington, 1921)

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)

The rural economy of the Midland counties; including the management of livestock, in Leicestershire and its environs: together with minutes on agriculture and planting in the district of the Midland Station - Marshall, Mr. (William), 1745 -1818 (G. Nicol, 1796)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1862)

Rural New Yorker - Moore, D. D. T. (Rural Pub. Co. [etc.], 1875)

Russkoe entomologicheskoe obozrenie = Revue russe d'entomologie - Russkoe entomologicheskoe obshchestvo (Russkoe entomologicheskoe obshchestvo, 1909)

Die Säugthiere in Abbildungen nach der Natur, mit Beschreibungen - Schreber, Johann Christian Daniel, 1739 -1810 (Expedition des Schreber'schen säugthier- und des Esper'schen Schmetterlingswerkes, 1838)

Saat und Pflege der landwirthschaftlichen Kulturpflanzen; Handbuch für die Praxis - Wollun, Ewald. (P. Parey, 1885)

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

Sage-grouse habitat assessment framework : a multiscale assessment tool : technical reference 6710-1 - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 2015)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 1988)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 1989)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2000)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2001)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2008)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2009)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2011)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2014)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2015)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2019)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2020)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2023)

Salmon-Challis National Forest noxious weed management program : final environmental impact statement - United States. Forest Service. (U.S. Forest Service, 2003)

Samenhandlung - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Emil Mauser, 1925)

Samenzucht, Samenhandlung, Handelsgärtnerei : Jahrgang 77, Nr. 176, Gründungsjahr 1855 / Carl Pabst - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Carl Pabst, 1932)

Samoa Dunes Recreation Area : final visitor services plan - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, Arcata Resource Area, 1997)

San Francisco Zoological Gardens master plan : draft environmental impact report - San Francisco (Calif.). Planning Dept. (Planning Dept, 1997)

San Francisco Zoological Gardens master plan : final environmental impact report - San Francisco (Calif.). Planning Dept. (Planning Dept, 1998)

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)

Saskatoon Island Provincial Park management plan - Alberta. Alberta Environmental Protection. Natural Resources Service. (Alberta Environmental Protection, Natural Resources Service, 1998)

Schedae operis quod inscribitur Plantae Finlandiae exsiccatae e Museo Botanico Universitatis Helsingforsiensis distributae - Helsingin yliopisto. Kasvimuseo. (J. Simelii arfvingars boktr, 1907)

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

Die Schmetterlinge der Schweiz - Müller-Rutz, J. (K.J. Wyss, 1914)

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

Die Schmetterlinge Europas - Hofmann, Ernst, 1837 -1892 (E. Schweizerbart, 1910)

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

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1882)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1904)

Schriften der Naturforschenden Gesellschaft in Danzig - Naturforschende Gesellschaft in Danzig. (Auf Kosten der Naturforschenden Gesellschaft, 1911)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1888)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1900)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1904)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1911)

Schriften der Physikalisch-Ökonomischen Gesellschaft zu Königsberg - Physikalisch-Ökonomische Gesellschaft zu Königsberg (In Commission bei Gräfe und Unzer, 1914)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1889)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1892)

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1893)

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

Schriften des Naturwissenschaftlichen Vereins für Schleswig-Holstein - Naturwissenschaftlicher Verein für Schleswig-Holstein. (Lipsius & Tischer, 1911)

Schriften herausgegeben von der Naturforscher-Gesellschaft bei der Universität Jurjew (Dorpat) - Universitas Jurjevensis. Naturforscher-Gesellschaft. (Druck von C. Mattiesen, 1895)

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

Schulflora der Provinz Schleswig-Holstein, des Fürstentums Lübeck, sowie des Gebietes der freien Städte Hamburg und Lübeck - Knuth, Paul, 1854 -1899 (O. Lenz, 1888)

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

Science - American Association for the Advancement of Science. ([s.n.], 1892)

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

Science - American Association for the Advancement of Science. ([s.n.], 1907)

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

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

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1895)

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1897)

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

Science-gossip (Simpkin Marshall, Hamilton, Kent & Co, 1900)

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

Scientific feeding of the domestic animals - Fischer, Paul, 1906 - (A. Eger, 1923)

Scottish gardens; being a representative selection of different types, old and new - Maxwell, Herbert, Sir, 1845 -1937 (Longmans, Green & co.; [etc., etc.], 1908)