Special scientific report Wildlife - U.S. Fish; Wildlife Service (The Service, 1973)

Spruce-fir forests of the highlands of northern Alberta - Achuff, P. L. (University of Alberta, Dept. of Botany, 1974)

Spunky Bottoms : restoration of a big-river flood plain - Illinois. Natural History Survey Division (Illinois Natural History Survey, 2007)

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 (Macmillan, 1919)

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)

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 Agoseris lackschewitzii, U.S.D.A., Forest Service, Region 1, Gallatin National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1990)

Status review of Agoseris lackschewitzii, U.S.D.A. Forest Service, Region 1, Gallatin National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1990)

Status review of Mertensia bella, U.S.D.A. Forest Service, Region 1, Lolo National Forest, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1991)

Stillwater State Forest landtype survey report - Montana. Forestry Division. (Dept. of Natural Resources and Conservation, Division of Forestry, 1978)

A study of the physiographic ecology of Mount Ktaadn, Maine - Harvey, Le Roy Harris. (1903)

Summary : northeast region benchmark program results 1992-1997 - Alberta. Alberta Agriculture, Food,; Rural Development. (Timberline Forest Inventory Consultants, 1999)

A summary of research at the Manitou Experimental Forest in Colorado, 1937-1983 - Gary, Howard L. (1985)

A summary of the prevalence of plant diseases in the Dominion of Canada, 1920-1924 - Canada. Department of Agriculture. (F.A. Acland, Printer to the King's Most Excellent Majesty, 1926)

Summer and autumn food habits of island and mainland populations of polar bears - a comparative study - Russell, Richard H (University of Alberta, Dept. of Zoology, 1971)

Surficial disturbance and natural plant recolonization in the Tuktoyaktuk Peninsula region, N.W.T - Hernández, Helios. (1972)

Survey and analysis of plant community types of Writing-on-Stone Provincial Park : final report - Alberta. Alberta Sustainable Resource Development. (The Company, 2004)

Survey of Cypripedium calceolus, U.S.D.I. Bureau of Land Management, Butte District, Garnet Resource Area, Montana - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1992)

Survey of rare vascular plants in Fidler-Greywillow Wildland Provincial Park - Alberta. Parks; Protected Areas Division. (Alberta Community Development, Parks and Protected Areas, 2005)

Survey of rare vascular plants in La Butte Creek wildland provincial park - Alberta. Parks; Protected Areas Division. (Alberta Community Development, Parks and Protected Areas, 2005)

Surveys for significant plant resources and related vegetation types for the Missoula Field Office of the Bureau of Land Management : 2006 survey results - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2007)

The swamps of Oswego County, N.Y., and their flora - Rowlee, Willard Winfield, 1861 - (1897)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1889)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1897)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1899)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1979)

Synopsis of the flora of Colorado - Coulter, John Merle, 1851 -1928 (Govt. print. off, 1874)

Synopsis plantarum glumacearum - Steudel, Ernst Gottlieb, 1783 -1856 (J.B. Metzler, 1855)

Synopsis plantarum; seu, Enumeratio systematica plantarum plerumque adhuc cognitarum cum differentiis specificis et synonymis selectis ad modum Persoonii elaborata - Dietrich, David Nathanael Friedrich, 1800 -1888 (B. F. Voigtii, 1839)

A taxonomic assessment and monitoring study of the long-styled thistle (Cirsium longistylum) - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1993)

Technical publication - New York State College of Forestry at Syracuse University. (The College, 1914)

Technical publication - New York State College of Forestry at Syracuse University. (The College, 1918)

Technical publication - New York State College of Forestry at Syracuse University. (The College, 1921)

Technical report : Illinois natural areas inventory - Illinois. Dept. of Conservation. (Dept. of Landscape Architecture, University of Illinois and Natural Land Institute, 1978)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1882)

A text-book of grasses : with especial reference to the economic species of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (Macmillan, 1914)

A text-book of grasses with especial reference to the economic species of the United States - Hitchcock, A. S. (Albert Spear), 1865 -1935 (Macmillan Co, 1914)

Text-book of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm - Harshberger, John W. (John William), 1869 -1929 (Blakiston, 1920)

Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm - Harshberger, John W. (John William), 1869 -1929 (P. Blakiston's Son & Co, 1920)

Tijdschrift over plantenziekten - Kruidkundig Genootschap Dodonaea. (J. Vuylsteke, 1895)

Timber harvesting and livestock grazing effects on deciduous communities of the lower foothills subregion - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, 2004)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1912)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1914)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1931)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1933)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1932)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1939)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1938)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1941)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1940)

Torreya, a monthly journal of botanical notes and news (1911)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1968)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1979)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1983)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1999)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2001)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2008)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2012)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2019)

Transactions and proceedings - Botanical Society Of Pennsylvania, Philadelphia. (University of Pennsylvania, 1911)

Transactions of the ... annual meetings of the Kansas Academy of Science - Kansas Academy of Science. Meeting. (Kansas Pub. House, 1893)

Transactions of the Botanical Society - Botanical Society of Edinburgh. (Botanical Society of Edinburgh, 1885)

Transactions of the British Mycological Society - British Mycological Society. (Cambridge University Press, 1922)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1916)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1917)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1914)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1917)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1921)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1927)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1931)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1934)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1933)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1943)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1945)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1949)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1948)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1955)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1966)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1967)