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

Species suitability and pH of soils in southern forests - Williston, Hamlin L. (U.S. Dept. of Agriculture, Forest Service, Southeastern Area, State and Private Forestry, 1978)

Specific gravity-strength relations for wood - United States. Office of Experiment Stations. (USDA, Forest Service, Forest Products Laboratory, 1956)

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

Spring 1918 trade price list for nurserymen, dealers, florists and landscape architects only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.B. Whittier & Co, 1918)

Spring 1919 trade price list for nurserymen, dealers, florists and landscape architects only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.B. Whittier & Co, 1919)

Spring 1920 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Framingham Nurseries, 1920)

Spring 1958 : shrubs, evergreens, trees, hollies - azaleas, rhododendrons in baby sizes - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Green Ridge Nursery, 1958)

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

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

Spring list ready for immediate delivery : March 1933 : tested native Northern New England tree seed with certified origin data! - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Company, 1933)

Sprouting capacity and sprout development in certain hardwood species of Central Pennsylvania - Vogenberger, Ralph Albert. (1931)

Stand dynamics in Connecticut forests-the new series plots (1959-2000) - Connecticut Agricultural Experiment Station. (Connecticut Agricultural Experiment Station, 2005)

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

Stand-improvement measures for southern forests - United States. Forest Service. (United States Government Printing Office, 1933)

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)

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)

Stereum and allied genera of fungi in the Upper Mississippi Valley - Lentz, Paul L. (Paul Lewis), 1918 - (U.S. Dept. of Agriculture, 1956)

Studies in forest pathology : II. the biology of Fomes Pinicola (SW.) Cooke - Canada. Department of Agriculture. (: Department of Agriculture, 1929)

Studies of Connecticut hardwoods; the treatment of advance growth arising as a result of thinnings and shelterwood cuttings - Hawley, Ralph C. (Ralph Chipman), 1880 -1971 (Yale University, 1925)

Studies of trees in winter; a description of the deciduous trees of northeastern America - Huntington, Annie Oakes, 1875 -1940 (D. Estes and Company, 1910)

Studies of trees in winter; a description of the deciduous trees of northeastern America - Huntington, Annie Oakes, 1875 -1940 (D. Estes and company, 1910)

The study of plant communities : an introduction to plant ecology - Oosting, Henry John, 1903 - (W.H. Freeman, 1948)

Successful farming : a ready reference on all phases of agriculture for farmers of the United States and Canada - Gardner, Frank D. (Frank Duane), 1864 -1963 (Smithsonian, 1916)

Successful farming a ready reference on all phases of agriculture for farmers of the United States and Canada : including soils, manures ... - Gardner, Frank D. (Frank Duane), 1864 -1963 (s.n, 1916)

The suitability of American woods for paper pulp - Rue, John Davidson, 1882 - (U.S. Dept. of Agriculture, 1927)

Summer roost-tree selection by a male Indiana bat on the Fernow Experimental Forest - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, Northeastern Research Station, 2002)

A survey of Canadian plants in relation to their environment - Adams, John, 1872 -1950 (Canada Dept. of Agriculture, 1927)

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

A survey of natural areas in Brunswick County, North Carolina : for The North Carolina Natural Heritage Program, Coastal Natural Area Inventory Project - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, 1982)

A survey of natural areas in Tyrrell County, North Carolina : for The North Carolina Natural Heritage Program, Coastal Natural Area Inventory Project - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, 1982)

Survival of food crops and livestock in the event of nuclear war Proceedings of a symposium held at Brookhaven National Laboratory, Upton, Long Island, New York, Sept. 15-18, 1970 - Brookhaven National Laboratory. (1971)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1978)

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

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1982)

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, 1992)

Systemwide plan for the North Carolina state parks system - North Carolina. Division of Parks; Recreation. (Division of Parks and Recreation, 1988)

Talbot county - Maryland Geological Survey. (Johns Hopkins press, 1926)

Taxonomic report of the International Lepidoptera Survey - Gatrelle, Ronald R. (International Lepidoptera Survey, 2004)

Taxonomic report of the International Lepidoptera Survey - Gatrelle, Ronald R. (International Lepidoptera Survey, 2021)

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, 1921)

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

Tennessee Native Plant Society newsletter - Tennessee Native Plant Society. (The Society, 1980)

Tennessee Native Plant Society newsletter - Tennessee Native Plant Society. (The Society, 1996)

Tennessee Native Plant Society newsletter - Tennessee Native Plant Society. (The Society, 1997)

Tennessee Native Plant Society newsletter - Tennessee Native Plant Society. (The Society, 2006)

[Terrell's Aquatic Farms & Nurseries trade circular and bulletin collection] - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Terrell's Aquatic Farms & Nurseries, 1932)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1971)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1972)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1976)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1983)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1984)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1987)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1989)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1998)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2004)

A text-book of mycology and plant pathology - Harshberger, John W. (John William), 1869 -1929 (P. Blakiston's Son & Co, 1917)

A textbook of botany for colleges and universities - Coulter, John Merle, 1851 -1928 (American book company, 1910)

Thirty important forest trees of Maryland. How to know them - Maryland. State Board of Forestry. (The Board, 1922)

The Timber resource in Maryland - Northeastern Forest Experiment Station (Radnor, Pa.) (Northeastern Forest Experiment Station, 1955)

Timber resource of Missouri's eastern Ozarks - North Central Forest Experiment Station (Saint Paul, Minn.) (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1990)

Timber resource of Missouri's northwest Ozarks - North Central Forest Experiment Station (Saint Paul, Minn.) (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1990)

Timber resource of Missouri's prairie '89 - North Central Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1991)

Timber resource of Missouri's riverborder '89 - North Central Forest Experiment Station (Saint Paul, Minn.) (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1991)

Timber resource of Missouri's southwest Ozarks - North Central Forest Experiment Station (Saint Paul, Minn.) (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1990)

Timber resource of the Indiana Knobs unit, 1986 - North Central Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1988)

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 Delaware; a report on the forest survey made by the U.S. Forest Serrvice - Ferguson, Roland H. (1959)

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)

The timber resources of New Jersey - Northeastern Forest Experiment Station (Radnor, Pa.) (Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974)

The timber resources of New Jersey; [a report on the forest survey made by the U.S. Forest Service] - United States. Northeastern Forest Experiment Station, Upper Darby, Pa. (1958)

The timber resources of Ohio - Northeastern Forest Experiment Station (Radnor, Pa.) (U.S. Northeastern Forest Experiment Station, 1970)

The timber resources of Rhode Island - Ferguson, Roland H. (1957)

The timber supply outlook in South Carolina - Larson, Robert W. (Robert Walter), 1918 - (U.S. Government Printing Office, 1951)

The timber supply situation in Florida - United States. Department of Agriculture. (Forest Service, U.S. Dept. of Agriculture, 1952)

Timber volumes of old Pennsylvania surface mine reclamation plantations - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1981)

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

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1987)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1989)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1993)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 2000)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 2002)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 2003)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 2004)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1909)

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

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1913)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1917)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1920)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1922)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1923)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1924)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1927)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1930)

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

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

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1944)

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

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, 1980)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1982)

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

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

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

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2003)

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

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2017)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2018)

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)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1914)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1913)