The silva of North America :a description of the trees which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin and company, 1896)

The silva of North America :a description of the trees which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin and company, 1902)

The silva of North America a description of the tree which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin, 1902)

The silva of North America a description of the tree which grow naturally in North America exclusive of Mexico - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin, 1896)

Silvical characteristics of Canadian trees - Toronto (Ont.) Faculty of Forestry (University of Toronto, Foresters' Club, 1915)

Silvical characteristics of Canadian trees (The Club, 1915)

Silvical characteristics of Engelmann spruce - Alexander, Robert R. (USDA, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1984)

Silvical characteristics of subalpine fir - Alexander, Robert R. (1984)

Silvicultural management of black spruce in Minnesota - Le Barron, Russell K. (U.S. Dept. of Agriculture, 1948)

Silvicultural systems and cutting methods for old-growth spruce-fir forests in the Central and Southern Rocky Mountains - Alexander, Robert R. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1986)

Silvicultural systems and cutting methods for ponderosa pine forests in the Front Range of the Central Rocky Mountains - Alexander, Robert R. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1986)

Silvicultural systems, cutting methods, and cultural practices for Black Hills ponderosa pine - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1987)

Silviculture of central and southern Rocky Mountain forests : a summary of the status of our knowledge by timber types - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

Silviculture of Ponderosa pine in the Black Hills : the status of our knowledge - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

Silviculture of southwestern mixed conifers and aspen : the status of our knowledge - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

Silviculture of southwestern ponderosa pine : the status of our knowledge - Schubert, Gilbert Herman, 1915 - (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

Silviculture of subalpine forests in the central and southern Rocky mountains : the status of our knowledge - Alexander, Robert R. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

Sixth annual report of the United States geological survey of the Territories, embracing portions of Montana, Idaho, Wyoming, and Utah : being a report of progress of the explorations for the year 1872 - Geological; Geographical Survey of the Territories (U.S.) (G.P.O, 1873)

Sketch of the North-West of America (Printed by J. Lovell, 1870)

Sketch of the North-West of America (s.n.], 1870)

Sketches of the physical geography and geology of Nebraska - Aughey, Samuel, 1831 -1912 (Daily Republican Book and Job Office, 1880)

Skogsvårdsföreningens tidskrift - Föreningen för skogsvård (Sweden) (Centraltryckeriet, 1921)

Smithsonian contributions to knowledge - Smithsonian Institution (Smithsonian Institution, 1895)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1923)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1933)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1951)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1961)

Snag habitat management : proceedings of the symposium, June 7-9, 1983, Northern Arizona University, Flagstaff - Davis, Jerry W. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1983)

Societatum litterae (R. Friedländer, 1893)

Soil and vegetation inventory of Wagner Natural Area, Alberta - Alberta. Alberta Environment. (Geowest Environmental Consultants Ltd, 2000)

Some morphological and physiological effects of (2-chloroethyl) trimethylammonium chloride (CCC) on certain species of the gramineae - University of Alberta. Dept. of Plant Science. (1964)

Some new and important plant disease occurrences and developments in the United States in 1955 - United States. Plant Disease Epidemics; Identification Section. (Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1956)

Some new and important plant disease occurrences and developments in the United States in 1957 - Nance, Nellie W. (Crops Research Division, Agricultural Research Service, United States Department of Agriculture, 1958)

Some new and important plant disease occurrences and developments in the United States in 1952 - 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, 1953)

Some new and important plant disease occurrences and developments in the United States in 1956 - United States. Plant Disease Epidemics; Identification Section. (Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1957)

Some plant galls of Illinois - Winterringer, Glen Spelman, 1906 - (Dept. of Registration and Education, 1961)

Some relationships between moose and willow in the Fort Providence, N.W.T. area - Penner, David F. (University of Alberta, Dept. of Plant Science, 1978)

Some unusual natural areas in Illinois and a few of their plants - Evers, Robert A. (Robert August), 1912 - (1963)

Songbird ecology in southwestern Ponderosa pine forests : a literature review - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1997)

Sources of the Ohio flora - Duvel, J. W. T. (1899)

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, 2008)

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

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

Southern Alberta herbicide application project report, 1980 - Hoyles, S. E. (Alberta Energy and Natural Resources, 1982)

The Southern headwaters at risk project : a multi-species conservation strategy for the headwaters of the Oldman River - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Data and Species at Risk Section, 2004)

Southern Idaho's forest land outside national forests, 1991 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. Forest Service, Intermountain Research Station, 1995)

Southwest Montana wetland assessment : developing a statewide assessment and monitoring strategy for Montana - United States. Environmental Protection Agency. (Montana Natural Heritage Program, 2012)

A southwestern mixed conifer plantation : case history and observations - Jones, John R. (John Robert), 1926 - (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975)

Spacing behaviour of breeding buffleheads (Bucephala albeola) on ponds in the southern boreal forest - Donaghey, Richard Hallam. (University of Alberta, Dept. of Zoology, 1975)

Special 30-day sale of lining-out and other specimen stock : surplus bargains, all nursery grown : November, 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1936)

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

Special catalogue: Evergreens and wild flowers of the Rocky Mountains : a general list of other stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Denver Nursery Co, 1916)

Special fall offerings of hardy native deciduous trees, shrubs, rock garden plants, lilies, etc. at very special prices : wholesale list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1932)

Special papers - Ohio Academy of Science. (The Academy, 1903)

Special papers - Ohio Academy of Science. (The Academy, 1899)

Special papers - Ohio Academy of Science. (The Academy, 1909)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1952)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1953)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1956)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1966)

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

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

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1979)

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

Special spring prices for the benefit of early spring buyers : spring delivery if desired, prices void after March 1, 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1934)

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

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1805)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1993)

Spixiana - Zoologische Staatssammlung München. (Zoologische Staatssammlung Mchen, 1995)

The spring and summer dispersion of male franklin's grouse in lodgepole fine forest in southwestern Alberta - McLachlin, Roderick Archibald, 1941 - (1970)

A spring flora for high schools - Cowles, Henry Chandler, 1869 -1939 (American Book Company, 1915)

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

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

Stand dynamics in Connecticut hardwood forests : the old series plots (1927-1997) - Connecticut Agricultural Experiment Station. (Connecticut Agricultural Experiment Station, 1999)

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)

Standard values in nutrition and metabolism, being the second fascicle of a handbook of biological data - Albritton, Errett C. (Errett Cyril), 1890 - (Saunders, 1954)

A standardized data structure for describing and exchanging data from remeasured growth and yield plots - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1990)

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

Standards for tree improvement in Alberta - Alberta. Alberta Sustainable Resource Development. (Land and Forest Division, Alberta Sustainable Resource Development, 2003)

Standards for tree improvement in Alberta - Alberta. Alberta Sustainable Resource Development. (Land and Forest Division, Alberta Sustainable Resource Development, 2005)

State of North America's birds of prey - American Ornithologists' Union. (Nuttall Ornithological Club, 2008)

Statement of work done by the Pennsylvania Department of Forestry, during - Pennsylvania. Department of Forestry. (Wm. Stanley Ray, state printer of Pennsylvania, 1902)