Maryland naturalist - Natural History Society of Maryland (The Society, 2002)

Maryland naturalist - Natural History Society of Maryland (The Society, 2003)

Maryland naturalist - Natural History Society of Maryland (The Society, 2005)

Maryland naturalist - Natural History Society of Maryland (The Society, 2012)

Massachusetts natural heritage program : plant community classification - Massachusetts. Dept. of Environmental Management. (s.n.], 1979)

Materia medica Americana potissimum regni vegetabilis - Lloyd, C. G. (Curtis Gates), 1859 -1926 ([s.n.], 1903)

A materia medica: Animalia, containing the scientific analysis, natural history and chemical and medical properties and uses of the substances that are the products of beasts, birds, fishes or insects ... - Good, Peter P. (Peter Peyto), 1789 -1875 (The author, 1853)

May bulletin. No. 3, May 1, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mount Arbor Nurseries, 1943)

May bulletin : in cold storage for rush orders - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Mount Arbor Nurseries, 1947)

Measures for stand improvement in southern Appalachian forests - Civilian Conservation Corps (U.S.) (U.S. G.P.O, 1933)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica (Societas, 1876)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1907)

Medical botany; or, Descriptions of the more important plants used in medicine, with their history, properties, and mode of administration - Griffith, R. Eglesfeld (Robert Eglesfeld), 1798 -1850 (Lea and Blanchard, 1847)

Medical flora or, Manual of the medical botany of the United States of North America : containing a selection of above 100 figures and descriptions of medical plants, with their names, qualities, properties, history, &c.: and notes or remarks on nearly 500 equivalent substitutes - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Atkinson & Alexander, 1828)

Meehan's monthly : a magazine of horticulture, botany, and kindred subjects (T. Meehan & Sons, 1891)

Meehans' book of hardy plants : describes the most complete assortment of high grade hardy stock in America - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan and Sons Inc, 1904)

Meehans' established 1854 : 49th edition autumn 1909 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, Inc, 1909)

Meehans' garden bulletin. [Vol. 2 no. 6], February, 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1911)

Meehans' garden bulletin. [Vol. 2 no. 7], March, 1911 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1911)

Meehans' monthly : a magazine of horticulture, botany and kindred subjects (Thomas Meehan & Sons, 1895)

Meehans' monthly : a magazine of horticulture, botany and kindred subjects (Thomas Meehan & Sons, 1899)

Meehans' monthly : a magazine of horticulture, botany and kindred subjects (Thomas Meehan & Sons, 1900)

Meehans' wholesale catalogue : spring, 1912 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Thomas Meehan & Sons, 1912)

Memoir - Cornell University. Agricultural Experiment Station. (1923)

Mémoire sur la naturalisation des arbres forestiers de l'Amérique Septentrionale, dans lequel on indique ce que l'ancien gouvernement avoit fait pour arriver à ce but, et les moyens qu'il conviendroit d'employer pour y parvenir; suivi d'un tableau raisonné des arbres de ce pays comparés avec ceux qui produit la France - Cels, Jacques-Martin, 1743 -1806 (Chez Levrault, Schoel et compagnie, rue de Seine, faubourg Saint-Germain, Hotel de la Rochefoucault, an XIII, 1805)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1945)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1963)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1972)

Memoirs of the National Academy of Sciences - National Academy of Sciences (U.S.) (Government Printing Office, 1914)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1890)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1893)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1900)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1965)

Memoria sobre la parte forestal de la Exposicion de Lóndres de 1862 - Bosch y Juliá, Miguel, 1818 -1879 (Imprenta nacional, 1863)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1907)

Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 1998)

Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 2008)

Message from the President of the United States, transmitting a report of the secretary of agriculture in relation to the forests, rivers and mountains of the southern Appalachian region - United States. Bureau of Forestry. (Gov't print. off, 1902)

Message from the President of the United States transmitting a report of the Secretary of agriculture in relation to the forests, rivers, and mountains of the Southern Appalachian region. December 19, 1901. – Read, referred to the Committee on forest reservations and the protection of game and ordered to be printed - Geological Survey (U.S.) (Govt. print. off, 1902)

The Metaspermae of the Minnesota Valley. A list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota Valley : a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 (Geological and Natural History Survey of Minnesota, 1892)

The Metaspermae of the Minnesota valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota river - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota Valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Houghton, Mifflin, 1885)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (James R. Osgood and Co, 1874)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Houghton, Mifflin and Company, 1886)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Ticknor and Fields, 1863)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Houghton, Mifflin, 1889)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Fields, Osgood, & Co, 1869)

Methods of study in natural history - Agassiz, Louis, 1807 -1873 (Ticknor and Fields, 1864)

[M.H. Harman Company materials] - M.H. Harman Company. (M.H. Harman Company, 1908)

Michell's seeds, bulbs, plants, 1937 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell Co, 1937)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1969)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1970)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1971)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1972)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1973)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1974)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1975)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1976)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1978)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1980)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1981)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1982)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1983)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1985)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1986)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1987)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1988)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1989)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1991)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1992)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1993)