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 wholesale trade list. August 18, 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mount Arbor Nurseries, 1958)

Summer wholesale trade list : July 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mount Arbor Nurseries, 1930)

Surplus bargain list of evergreen and deciduous trees and complete lining-out stock prices - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kelsey Nursery Service, 1931)

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)

A survey of diseases and defects in Connecticut forests - Bidwell, C. B. (Connecticut Agricultural Experiment Station, 1938)

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)

A survey of the pole resource in the northern Black Hills - United States. Forest Service. (Rocky Mountain Forest and Range Experiment Station, 1957)

Svensk botanisk tidskrift - Svenska botaniska föreningen. (Svenska botaniska föreningen [etc.], 1923)

Swedberg Bros. Nurseries, "service, quality, fair prices since 1915" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swedberg Bros. Nurseries, 1929)

Swedberg Bros. Nursery [catalog] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swedberg Bros. Nursery, 1930)

Syllabus de Pflanzenfamilien, eine Übersicht über das gesamte Pflanzensystem mit besonderer Berücksichtigung der Medizinalund Nutzpflanzen nebst einer Ubersicht über die Florenreiche und Florengebiete der Erde zum Gebrauch bei Vorlesungen und Studien über spezielle und medizinisch-pharmazeutische Botanik - Engler, Adolf, 1844 -1930 (Borntraeger, 1919)

Sylloge fungorum omnium hucusque cognitorum - Saccardo, P. A. (Pier Andrea), 1845 -1920 (sumptibus auctoris, 1902)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1973)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1980)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1981)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1983)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1984)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1985)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1992)

The sylva americana; or, A description of the forest trees indigenous to the United States, practically and botanically considered - Browne, D. J. (Daniel Jay), 1804 -1867 (W. Hyde & co, 1832)

The sylva Americana; or a description of the forest trees indigenous to the United States, practically and botanically considered - Massachusetts Horticultural Society (William Hyde & Co, 1832)

Sylvan Ontario : a guide to our native trees and shrubs - Muldrew, W. H. (William Hawthorne), 1867 -1904 (W. Briggs, 1901)

Synopsis der mitteleuropaïschen flora - Graebner, Paul, 1871 -1933 (W. Engelmann, 1896)

Tables of whole-tree weight for selected U.S. tree species - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1984)

Tamarack - Betts, Harold S. (Forest Service, U.S. Dept. of Agriculture, 1985)

Target Seedling Symposium : proceedings, combined meeting of the Western forest nursery associations, August 13-17, 1990, Roseburg, Oregon - Campbell, Sally J. (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1990)

A taxonomic classification system for Montana riparian vegetation types : an interagency approach to classifying Montana's riparian ecosystems - Batchelor, Ronald F. (Montana Rural Area Development Committee, Wildlife Subcommittee, Riparian Program Team, 1982)

Taxonomy and ecology of the genus Eimeria (Protozoa, Eimeriidae) in the snowshoe hare of central Alberta - Samoil, Howard Paul. (University of Alberta, Dept. of Zoology, 1976)

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 series / Bureau of Entomology United States Department of Agriculture - United States. Bureau of Entomology. (Govt. print. off, 1896)

Testing the establishment and growth of the elite white spruce hybrid supertrees TM in Alberta : 1997/98 final report - Alberta. Alberta Environmental Protection. (Alberta Environmental Protection], 1998)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1994)

A third digest of the literature on DDT : (January through June 1945) - United States. Office of Experiment Stations. ([United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine], 1947)

Three pine release experiments in northern Minnesota - Lake States Forest Experiment Station (Saint Paul, Minn.) (Lake States Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1962)

Through glade and mead; a contribution to local natural history - Jackson, Joseph, 1847 -1924 (Putnam, Davis and Company, 1894)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1977)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1979)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1981)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1985)

Timber conditions in the pine region of Minnesota - Ayres, H. B. (Horace Beemer), 1856 - (Govt. print. off, 1900)

Timber growing and logging practice in the central hardwood region - Tillotson, C. R. (U.S. Dept. of Agriculture, 1927)

Timber growing and logging practice in the Lake states : measures necessary to keep forest land productive and to produce full timber crops - Zon, Raphaël, 1874 -1956 (U.S. Dept. of Agriculture, 1928)

Timber resource of Wisconsin's Central Survey Unit, 1983 - North Central Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1985)

Timber resource of Wisconsin's Northwest Survey Unit, 1983 - North Central Forest Experiment Station (Saint Paul, Minn.) (Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1984)

Timber resource of Wisconsin's Southeast Survey Unit, 1983 - Spencer, John S. (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1985)

Timber resource of Wisconsin's Southwest Survey Unit, 1983 - Raile, Gerhard K. (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1985)

The timber resources in Massachusetts - United States. Northeastern Forest Experiment Station, Upper Darby, Pa. (1956)

The timber resources of Connecticut - Ferguson, Roland H. (Northeastern Forest Experiment Station, Forest Service, U. S. Department of Agriculture, 1957)

The timber resources of Idaho - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1962)

The timber resources of Maine; [a report on the forest survey made by the U.S. Forest Service] - Northeastern Forest Experiment Station (Radnor, Pa.) (1960)

Timbers and their uses; a handbook for woodworkers, merchants, and all interested in the conversion and use of timber - Winn, Wren. (G Routledge & Sons, 1919)

Timbers of the world - Timber Research; Development Association. (TRADA, 1900)

Tong ji sheng tai xue : fang fa he ji suan ru men 統計生態學 : 方法和計算入門 - Ludwig, John A. (Nei menggu da xue chu ban she 內蒙古大學出版社, 1991)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1905)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1907)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1910)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1926)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1928)

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

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1935)

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

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

Towson Nurseries, Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Towson Nurseries, 1930)

Tracking wildlife by satellite : current systems and performance - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1990)

Trade list Fall 1904 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nursery, 1904)

Trade list, fall 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Profile Collecting Co, 1933)

Trade list [of] Old Colony Nursery : Spring 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Old Colony Nurseries, 1909)

Trade list : Old Colony Nursery fall, 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.R. Watson, 1906)

Trade list : Old Colony Nursery spring 1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.R. Watson, 1906)

Trade list : spring, 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Amherst Nurseries, 1926)

Trade price list : fall 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson, 1938)

Trade price list : fall 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson, 1939)

Trade price list : fall 1942, spring 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson, 1942)

Trade price list : fall 1951, spring 1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson Sales Agency, 1951)

Trade price list : fall and spring 1935-1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson, 1935)

Trade price list of lining out stock : spring 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Adams Nursery, Inc, 1938)

Trade price list : spring 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.D. Robinson, 1938)

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

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1969)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1977)

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, 1990)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1994)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1998)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2002)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2004)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2006)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2010)

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

Trails and tramps in Alaska and Newfoundland - Thomas, William S., 1858 - (G.P. Putnam's, 1913)

Trails and tramps in Alaska and Newfoundland - Thomas, William S., 1858 - (G. P. Putnam's sons, 1913)

Traité des arbres & arbrisseaux, forestiers, industriels et d'ornement, cultivés ou exploités en Europe et plus particulièrement en France, donnant la description et l'utilisation de plus de 2400 espèces et 2000 variètès - Mouillefert, P. (Pierre), 1846 -1903 (Librairie des sciences naturelles, 1898)

Trampling effects on mountain vegetation in Washington, Colorado, New Hampshire, and North Carolina - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1993)

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Transactions of the American Entomological Society - American Entomological Society. (The Society at the Academy of Natural Sciences, 1895)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1908)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1919)

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.], 1945)

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.], 1973)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1991)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1992)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 2005)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 2008)

Transactions of the Royal Scottish Arboricultural Society - Royal Scottish Arboricultural Society. (Douglas & Foulis, 1911)

Transactions of the Royal Scottish Arboricultural Society - Royal Scottish Arboricultural Society. (Douglas & Foulis, 1913)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1892)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1909)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1927)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1944)

Transactions of the Wisconsin Academy of Sciences, Arts, and Letters - Wisconsin Academy of Sciences, Arts; Letters. (Wisconsin Academy of Sciences, Arts, and Letters, 1945)