Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1852)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1853)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1873)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1886)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1889)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1913)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1916)

Societas entomologica - International Entomological Society. (A. Kernan [etc.], 1917)

Societatum litterae (R. Friedländer, 1887)

Societatum litterae (R. Friedländer, 1890)

Some common Colorado wild flowers - Roberts, Harold D. (Denver Museum of Natural History, 1953)

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

The Sonoran Quarterly - Desert Botanical Garden (Ariz.) (Desert Botanical Garden, 2009)

The Sonoran Quarterly - Desert Botanical Garden (Ariz.) (Desert Botanical Garden, 2010)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1925)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1940)

The South Australian Naturalist - Field Naturalists' Society of South Australia (The Society, 1921)

South Saskatchewan River Basin riparian health overview, including. Part 1, Red Deer, Bow and South Saskatchewan Rivers and - Alberta. Alberta Environment. (The Society, 2005)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2007)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2011)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2012)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2013)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2016)

Southwestern rare and endangered plants : proceedings of the second conference : September 11-14, 1995, Flagstaff, Arizona - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1996)

Späth-Buch, 1720-1920 : Geschichte und Erzeugnisse der Späth'schen Baumschule - L. Späth (Firm) (L. Späth, 1920)

Special bulletin - Smithsonian Institution (Government Printing Office, 1895)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1958)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1978)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1982)

Species des hyménoptères d'Europe & d'Algérie - André, Ernest, 1838 -1914 (1897)

Species of special concern in Pennsylvania - Genoways, Hugh H. (Carnegie Museum of Natural History, 1985)

Specimen botanicum quo plantarum plurium rariorum Angliae indigenarum loci natales illustrantur - Blackstone, John, 1712 -1753 (Typis Gulielmi Faden, 1746)

Spicilége de la flore bruxelloise - Muller, Félix, 1818 -1896 (Hayez, 1862)

Spicilegium florae Maroccanae - Ball, John, 1818 -1889 (Printed by Taylor and Francis, 1878)

Spicilegium Neilgherrense, or, a selection of Neilgherry plants : drawn and coloured from nature, with brief descriptions of each ; some general remarks on the geography and affinities of natural families of plants, and occasional notices of their economical properties and uses - Wight, Robert, 1796 -1872 (the author, 1851)

Spisok nasinni︠a︡ dli︠a︡ obminu = Index seminum quae Hortus Botanicus in Kamianetz-Podilskyj pro mutua commutatione offert - Kam'ia͡nets͡ʹ-Podilʹsʹkyĭ Botanichniĭ sad. (Kam'ia͡nets͡ʹ-Podilʹsʹkyĭ Botanichniĭ sad, 1934)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1983)

Spixiana. Supplement - Zoologische Staatssammlung München. (Zoologische Staatssammlung München, 1981)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1984)

Spixiana. Supplement - Zoologische Staatssammlung München. (Zoologische Staatssammlung München, 1978)

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

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1988)

Sport in Norway, and where to find it. Together with a short account of the vegetable productions of the country. To which is added, a list of the Alpine flora of the Dovre fjeld and of the Norwegian ferns, &c - Barnard, Mordaunt. (Chapman and Hall, 1864)

Sprawozdanie Komisyi Fizyograficznej (1897)

Sprawozdanie Komisyi Fizyograficznej (1899)

Sprawozdanie Komisyi Fizyograficznej (1900)

Sprawozdanie Komisyi Fizyograficznej (1901)

Sprawozdanie Komisyi Fizyograficznej (1904)

Sprawozdanie Komisyi Fizyograficznej (1910)

Sprawozdanie Komisyi Fizyograficznej (1912)

Spring flora of Oklahoma, with key - Myers, W. Stanley (William Stanley), 1888 - (Harlow publishing company, 1929)

Spring flora of the Wasatch region - Garrett, A. O. (Albert Osbun), 1870 -1948 (Skelton Publishing, 1911)

St. Gallische Flora : für Anfänger und Freunde der Botanik - Wartmann, Jakob, 1803 -1873 (Scheitlin und Zollikofer, 1847)

Stand dynamics system field remeasurement manual - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, Public Lands and Forests Division, Forest Management Branch, 2005)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Co.; [etc., etc.], 1916)

The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States and Canada for ornament, for fancy, for fruit and for vegetables; with keys to the natural families and genera, descriptions of the horticultural capabilities of the states and provinces and dependent islands, and sketches of eminent horticulturists - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1919)

Standardized plant names; a catalogue of approved scientific and common names of plants in American commerce - Olmsted, Frederick Law, 1870 -1957 (1923)

Station bulletin - New Hampshire Agricultural Experiment Station. (Agricultural Experiment Station, University of New Hampshire, 1948)

The status, distribution, and management of mountain goats in the Greater Yellowstone Ecosystem : final report - Laundré, John W. (National Park Service, 1990)

Status of endangered and threatened sand area species of the Illinois flora - Illinois. Natural History Survey Division (Illinois Natural History Survey, 2011)

Status report on sensitive lady's slipper orchids (Cypripedium calceolus var. parviflorum and Cypripedium passerinum) on the Kootenai National Forest - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1996)

Status review of Cirsium longistylum, U.S.D.A. Forest Service, Region 1 Lewis and Clark National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Status review of Cirsium subniveum on the Beaverhead National Forest, U.S.D.A., Forest Service, Region 1, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Status review of Cirsium subniveum on the Beaverhead National Forest, U.S.D.A. Forest Service, Region 1, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Status review of Epipactis gigantea, U.S.D.A. Forest Service, Region 1, Flathead National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Status review of Lesquerella klausii, U.S. Forest Service, Region 1, Helena and Lewis & Clark National Forests, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1988)

Status review of Lesquerella klausii, U.S. Forest Service, Region 1, Helena and Lewis & Clark National Forests, Montana - Montana Natural Heritage Program. ([Montana Natural Heritage Program], 1988)

Stettiner Entomologische Zeitung - Entomologischer Verein in Stettin. (Kommissionsverlag von Friedländer & Sohn, 1912)

Stettiner Entomologische Zeitung - Entomologischer Verein in Stettin. (Kommissionsverlag von Friedländer & Sohn, 1919)

Stettiner Entomologische Zeitung - Entomologischer Verein in Stettin. (Kommissionsverlag von Friedländer & Sohn, 1921)

Stirpes rariores Bucovinae, oder, Die seltenen Pflanzen der Bucovina - Herbich, Franz, 1791 -1865 (Gedruckt bei Johann Paul Piller, 1853)

Stirpium rariorum in Imperio rutheno sponte provenientium icones et descriptiones - Amman, Johann, 1707 -1742 (ex typographia Academiae scientiarvm, 1739)

Strasburger's Text-book of botany - Strasburger, Eduard, 1844 -1912 (Macmillan, 1921)

Strolls by starlight and sunshine - Gibson, W. Hamilton (William Hamilton), 1850 -1896 (Harper & Brothers, 1891)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein & co, 1896)

A students' text-book of botany - Vines, Sydney Howard, 1849 -1934 (S. Sonnenschein, 1895)

Studies in evolution; mainly reprints of occasional papers selected from the publications of the Laboratory of invertebrate paleontology, Peabody Museum, Yale University - Beecher, Charles Emerson, 1856 -1904 (C. Scribner, 1901)

Studies in practical agriculture. Papers reprinted from the Agricultural experiment station reports now out of print - Cornell University. Agricultural Experiment Station. (Cornell university, 1887)

Studies of the Essex flora: an enumeration of all plants found growing naturally within the limits of Lynn, Mass - Tracy, Cyrus M. (Cyrus Mason), 1824 -1891 (The Nichols press, 1892)

Studies on Rocky Mountain flora - Rydberg, Per Axel, 1860 -1931 (New York Botanical Garden, 1901)

Studies on Rocky Mountain flora - Rydberg, Per Axel, 1860 -1931 (New York Botanical Garden, 1910)