Theoria systematis plantarum; accedit familiarum phanerogamarum in series naturales dispositio, secundum structurae normas et evolutionis gradus instituta - Agardh, Jacob Georg, 1813 -1901 (Apud C. W. K. Gleerup; [etc.,etc.], 1858)

The theory and practice of horticulture; or, An attempt to explain the chief operations of gardening upon physiological grounds - Lindley, John, 1799 -1865 (Longman, Brown, Green, and Longmans, 1855)

The theory and practice of landscape gardening - Major, Joshua, 1787 -1866 (Longman, Brown, Green, and Longmans, 1852)

Thesaurus litteraturae mycologicae et lichenologicae ratione habita praecipue omnium quae adhuc scripta sunt de mycologia applicata - Lindau, Gustav, 1866 -1923 (Fratres Borntraeger, 1913)

Thesaurus litteraturae mycologicae et lichenologicae ratione habita praecipue omnium quae adhuc scripta sunt de mycologia applicata - Lindau, Gustav, 1866 -1923 (Fratres Borntraeger, 1908)

Thiere der Heimath : Deutschlands Sa¨ugethiere und Vo¨gel - Müller, Adolf, 1821 -1910 (Verlag von Theodor Fischer, 1882)

Thiere der Heimath : Deutschlands Säugethiere und Vögel - Müller, Adolf, 1821 -1910 (Verlag von Theodor Fischer, 1840)

Thomas Hancock's abridged catalogue of hot and green house plants, fruit, forest and ornamental trees and shrubs, cultivated and for sale at his well known and established nurseries, at Ashton, near Burlington, New Jersey - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Hancock, 1849)

Tidsskrift for populære fremstillinger af naturvidenskaben (P.G. Philipsens forlag, 1860)

Tidsskrift for populære fremstillinger af naturvidenskaben (P.G. Philipsens forlag, 1871)

Tidsskrift for populære fremstillinger af naturvidenskaben (P.G. Philipsens forlag, 1872)

"Tidy tips" from Flowerland : season 1924-1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Paul J. Howard's Horticultural Establishment, 1924)

Das Tierreich - Deutsche Zoologische Gesellschaft. (R. Friedländer, 1898)

The Tiger Nurseries, Inc., 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Inc, 1938)

The Tiger Nurseries, Inc., 1939 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Inc, 1939)

The Tiger Nurseries, Inc., 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Inc, 1940)

The Tiger Nurseries, Incorporated, 1941 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tiger Nurseries, Incorporated, 1941)

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

Tijdschrift over plantenziekten - Kruidkundig Genootschap Dodonaea. (J. Vuylsteke, 1914)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1906)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1927)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1938)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1939)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1945)

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1975)

Tillägg till Östgöta flora : innehållande förteckning öfver Östergötlands fanerogamer och ormbunkar jemte uppgift öfver deras växeställen - Kindberg, N. C. (Nils Conrad), 1832 -1910 (C. F. Ridderstad, 1868)

Timber and timber trees, native and foreign - Ward, H. Marshall (Harry Marshall), 1854 -1906 (Macmillan & Co, 1894)

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)

Tingle's wholesale price list : fall 1957 - spring 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tingle Nursery, 1957)

Tingle's wholesale price list : fall 1965 - spring 1966 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tingle Nursery, 1960)

Tingle's wholesale price list : fall 1965 - spring 1966 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tingle Nursery, 1961)

Tingle's wholesale price list : fall 1965 - spring 1966 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tingle Nursery, 1963)

Tingle's wholesale price list : spring 1960 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Tingle Nursery, 1963)

Tirocinium botanicum Edinburgense - Alston, Charles, 1683 -1760 (Typis W. Sands, A. Murray, & J. Cochran, 1753)

Titus Nursery Company, Waynesboro, Virginia, growers of high grade nursery stock - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Titus Nursery Co, 1927)

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

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

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

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1936)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1945)

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

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

Townsend's 20th century catalog, 1931 : strawberries and how to grow them - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.W. Townsend & Sons, 1931)

Towson Nurseries Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Towson Nurseries, 1933)

Towson Nurseries, Inc - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Towson Nurseries, 1938)

Towson Nurseries, Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Towson Nurseries, 1925)

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

Towson Nurseries, Incorporated - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Towson Nurseries, 1928)

Tracts relative to botany - Hedwig, Johannes, 1730 -1799 (Printed by Phillips and Fardon [etc.], 1805)

Tracts relative to botany, translated from different languages illustrated by nine copper-plates, and occasional remarks - Hedwig, Johannes, 1730 -1799 (Printed and sold by Phillips and Fardon, 1805)

Trade list. Spring, 1917 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Meehan Co, 1917)

Trade list # 101 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Howard-Hickory Co, 1934)

Trade list, 1942, for the use and information of nurserymen and dealers at wholesale - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Russellville Nurseries, 1942)

Trade list : fall, 1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1912)

Trade list : fall, 1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1913)

Trade list : fall, 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1914)

Trade list : fall, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1915)

Trade list : fall, 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1916)

Trade list : fall, 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Co, 1924)

Trade list : fall 1926 spring 1927 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Piedmont Forestry Company, 1926)

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 fall, 1908 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (T.R. Watson, 1908)

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

Trade list : spring, 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1909)

Trade list : spring, 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1910)

Trade list : spring, 1913 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1913)

Trade list : spring, 1914 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1914)

Trade list : spring, 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1915)

Trade list : spring, 1916 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1916)

Trade list : spring, 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Meehan Co, 1922)

Trade list : spring 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas B. Co, 1925)

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

Trade price-list - Mount Desert Nurseries. (Mt. Desert Nurseries, 1899)

Trade price-list - Mount Desert Nurseries. (Mt. Desert Nurseries, 1900)

Trade price list, 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swan River Nursery, 1950)

Trade price list : fall 1950 - spring 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A. N. Pierson, Inc, 1950)

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 1954 - spring 1955 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson, Inc, 1954)

Trade price list : fall 1957 - spring 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson, IncIncorporated, 1957)

Trade price list : fall 1958 - spring 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson, Inc, 1958)

Trade price list, fall and spring 1946-1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson, Inc, 1946)

Trade price list, spring 1949 : illustration - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (A.N. Pierson, Inc, 1949)

Trade seed-list, 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Haage & Schmidt, 1935)

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

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2009)

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

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2016)

Traité d'entomologie forestière à l'usage des forestiers, des reboiseurs et des propritaries de bois - Barbey, Auguste, 1872 -1948 (Berger-Levrault, 1913)

Traité de botanique - Van Tieghem, Phillippe Édouard Léon, 1839 -1914 (s.n, 1892)

Traité de sylviculture - Boppe, Lucien, 1834 -1907 (Berger-Levrault, 1889)

Traité économique et physique du gros et menu bétail - Buchoz, Pierre Joseph, 1731 -1807 (J.F. Bastien, 1778)

Traité des arbres et arbustes qui se cultivent en France en pleine terre - Duhamel du Monceau, M., 1700 -1782 (Chez H.L. Guerin & L.F. Delatour, rue Saint Jacques, à Saint Thomas d'Aquin, 1755)

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

Transactions for the year ... of the Essex Agricultural Society of the County of Essex, in Massachusetts - Essex Agricultural Society (Mass.) ([The Society, 1881)

Transactions / Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 1985)

Transactions / Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 1988)

Transactions of the Academy of Science of St. Louis - Academy of Science of St. Louis. (Academy of Science of St. Louis], 1912)

Transactions of the Academy of Science of St. Louis - Academy of Science of St. Louis. (Academy of Science of St. Louis], 1942)

Transactions of the American Institute of the City of New-York - American Institute of the City of New York. (s.n.], 1854)

Transactions of the British Mycological Society - British Mycological Society. (Cambridge University Press, 1923)

Transactions of the Entomological Society of London - Royal Entomological Society of London (The Society, 1882)

Transactions of the Geological Society - Geological Society of London ([The Society], 1822)

Transactions of the Hertfordshire Natural History Society and Field Club - Hertfordshire Natural History Society; Field Club. (The Club, 1905)

Transactions of the Highland and Agricultural Society of Scotland - Highland; Agricultural Society of Scotland. ([The Society], 1843)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1925)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1937)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1993)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1999)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 2002)

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 Illinois State Horticultural Society for - Horticultural Society of Northern Illinois. (The Society)

Transactions of the Kansas Academy of Science - Kansas Academy of Science. (W.Y. Morgan, 1903)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1991)

Transactions of the Linnaean Society of New York - Linnaean Society of New York (The Society, 2007)

Transactions of the Massachusetts Horticultural Society - Massachusetts Horticultural Society (s.n.], 1880)

Transactions of the Massachusetts Horticultural Society - Massachusetts Horticultural Society (s.n.], 1882)

Transactions of the Massachusetts Horticultural Society - Massachusetts Horticultural Society (s.n.], 1886)

Transactions of the Massachusetts Horticultural Society - Massachusetts Horticultural Society (s.n.], 1906)

Transactions of the Massachusetts Horticultural Society - Massachusetts Horticultural Society (s.n.], 1914)

Transactions of the Natural History Society of Glasgow : (including the proceedings of the society) - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1902)

Transactions of the Natural History Society of Glasgow : (including the proceedings of the society) - Natural History Society of Glasgow. (Natural History Society of Glasgow, 1905)

Transactions of the Norfolk and Norwich Naturalists' Society - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists' Society, 2016)

Transactions of the Royal Scottish Arboricultural Society - Royal Scottish Arboricultural Society. (Douglas & Foulis, 1888)