A text-book of botany - Strasburger, Eduard, 1844 -1912 (Macmillan and co., limited, 1908)

A text-book of botany for colleges - Ganong, William Francis, 1864 -1941 (The Macmillan Company, 1916)

A text-book of botany for secondary schools - Coulter, John Merle, 1851 -1928 (D. Appleton and company, 1909)

Text-book of botany : morphological and physiological - Bennett, Alfred W. (Alfred William), 1833 -1902 (Clarendon Press, 1875)

Text-book of botany, morphological and physiological - Sachs, Julius, 1832 -1897 (Clarendon press, 1882)

Text-book of botany : morphological and physiological - Sachs, Julius, 1832 -1897 (Clarendon Press, 1883)

Text-book of botany, morphological and physiological - Bennett, Alfred W. (Alfred William), 1833 -1902 (Clarendon Press, 1875)

A text-book of elementary botany - Kellerman, W. A. (William Ashbrook), 1850 -1908 (Eldredge & Brother, 1897)

A text-book of plant physiology - Peirce, George James, 1868 -1954 (H. Holt, 1903)

Text-book of structural and physiological botany - Bennett, Alfred W. (Alfred William), 1833 -1902 (Longmans, Green, 1885)

Text-book of western botany : consisting of Coulter's Manual of the botany of the Rocky mountains, to which is prefixed Gray's lessons in botany. For the use of schools and colleges between the Mississippi river and the Rocky mountains - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and Company, 1885)

Textbook of botany - Allen, Charles E. (Charles Elmer), 1872 - (D. C. Heath & co, 1917)

A textbook of botany for colleges - Ganong, William Francis, 1864 -1941 (The Macmillan company, 1916)

A textbook of botany for colleges - Ganong, William Francis, 1864 -1941 (Macmillan, 1920)

A textbook of botany for colleges and universities - Coulter, John Merle, 1851 -1928 (Amer. Bk. Co, 1910)

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

A textbook of botany for colleges and universities - Coulter, John Merle, 1851 -1928 (American book company, 1911)

A textbook of botany for colleges - Ganong, William Francis, 1864 -1941 (Macmillan, 1923)

A textbook of elementary biology - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (Longmans, Green, and Co, 1889)

Textbook of theoretical botany - Ivimey-Cook, W. R. (Walter Robert), 1901 -1952 (Longmans, Green, 1956)

That rock-garden of ours - Hulme, F. Edward (Frederick Edward), 1841 -1909 (Jacobs, 1909)

The journal of horticulture (1895)

The journal of horticulture (1903)

The journal of horticulture (1899)

The journal of horticulture (1904)

Theoretische Anfangsgründe der Botanik, oder, Erklärung der Grundsätze der natürlichen Classeneintheilung und der Kunst die Gewächse zu beschreiben und zu studieren - Candolle, Augustin Pyramus de, 1778 -1841 (Drell, 1815)

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)

Thesaurus literaturae botanicae omnium gentium : inde a rerum botanicarum initiis ad nostra usque tempora, quindecim millia operum recensens - Pritzel, G. A. (Georg August), 1815 -1874 (F.A. Brockhaus, 1851)

Third annual report of the Regents of the University on the condition of the State Cabinet of Natural History and the Historical and Antiquarian Collection annexed thereto - Hall, James, 1811 -1898 (Weed, Parsons, 1850)

Thorburn's century : J.M. Thorburn & Co. one hundredth annual catalogue - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1901)

Thorburn's seeds 1902 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1902)

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

Tidsskrift for populære fremstillinger af naturvidenskaben (P.G. Philipsens forlag, 1875)

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

Tijdschrift voor entomologie - Nederlandse Entomologische Vereniging (Nederlandse Entomologische Vereniging, 1990)

Tijdschrift voor natuurlijke geschiedenis en physiologie (1840)

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, 1994)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1995)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1997)

Tipularia - Georgia Botanical Society. (Georgia Botanical Society, 1999)

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

Toole's 1935–36 catalog : hardy perennials, rock garden plants, Midwestern wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1935)

Toole's 1935 catalog : hardy perennials, rock garden plants, Mid-Western wild flowers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.A. Toole, 1935)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1903)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1904)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1906)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1908)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1915)

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, 1929)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1934)

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

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1942)

Torreya - Torrey Botanical Club. (Torrey Botanical Club, 1943)

Trade catalogue of hardy plants and shrubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. F. Bassett & Son, 1895)

Trade list of rare Florida flowers and fruits - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pike & Ellsworth, 1894)

Trade list [of] tree and shrub seeds, roots, bulbs : 1905-1906 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Otto Katzenstein & Co, 1905)

Trade price-list of garden, flower, tree, agricultural and herb seeds : also a select list of gladioli and other spring bulbs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1901)

Trade price-list of seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J.M. Thorburn & Co, 1902)

Trade prices on hardy American ornamental plants : spring 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.C. Robbins, 1935)

Trail & landscape - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1990)

Traitde physiologie consid comme science d'observation - Jourdan, A.-J.-L. (Antoine Jacques Louis), 1788 -1848 (J.B. Baillie, 1837)

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

Traité de botanique générale - Hérincq, F. (François), 1820 -1891 (Abel Pilon et cie, éditeurs, 33 rue de fleurs, 33, 1860)

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

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Transactions and proceedings of the Botanical Society of Pennsylvania - Botanical Society of Pennsylvania. (University of Pennsylvania, 1898)