A Manual of the coniferae : containing a general review of the order; a synopsis of the hardy kinds cultivated in Great Britain; their place and use in horticulture, etc., etc (James Veitch & Sons, 1881)

Manual of the trees of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Houghton Mifflin company, 1922)

Manual of the trees of North America (exclusive of Mexico) - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin, 1905)

Manuel de l'acclimateur, ou, Choix de plantes recommandées pour l'agriculture, l'industrie et la médecine, et adaptées aux divers climate de l'Europe et des pays tropicaux - Naudin, Charles, 1815 -1899 (Société d'aAcclimatation, 1887)

Marcellia - Institut de botanique de Strasbourg. (Pergamon Press [etc.], 1908)

Marshalls hand book of trees, shrubs and plants - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Marshalls Nurseries, 1926)

Maryland birdlife - Maryland Ornithological Society. (Maryland Ornithological Society, 1974)

Maryland naturalist - Natural History Society of Maryland (The Society, 1998)

Maryland naturalist - Natural History Society of Maryland (The Society, 1999)

Materialien zu einer Ornis Balcanica - Reiser, Othmar, 1861 -1936 (In Kommission bei C. Gerold's Sohn, 1905)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1898)

Mazedonien : erlebnisse und beobachtungen eines naturforschers im gefolge des deutschen heeres - Doflein, Franz, 1873 -1924 (Gustav Fischer, 1921)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2001)

Meadowlark - Illinois Ornithological Society. (Illinois Ornithological Society, 2009)

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)

Medicinal plants. Being descriptions with original figures of the principal plants employed in medicine and an account of the characters, properties, and uses of their parts and products of medicinal value - Trimen, Henry, 1843 -1896 (J. & A. Churchill, 1880)

Mémoires couronnés et autres mémoires publiés par l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (F. Hayez, 1899)

Mémoires de la Société d'émulation du Doubs - Société d'émulation du Doubs. ([La Société], 1894)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1996)

Memoirs of the New York Botanical Garden - New York Botanical Garden (The Garden, 1964)

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

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

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1964)

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

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1996)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1997)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 1998)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 2000)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 2003)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 2005)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 2006)

Michigan botanist - Michigan Botanical Club. (Michigan Botanical Club, 2008)

Michigan flora : a list of the fern and seed plants growing without cultivation - Beal, W. J. (William James), 1833 -1924 (State Board of Agriculture, 1904)

Michigan forest statistics, 1980 - Raile, Gerhard K. (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1983)

Michigan forest statistics, 1993 - Spencer, John S. (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1996)

Michigan's forests 1993 an analysis - Spencer, John S. (U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1997)

Michigan's fourth forest inventory : AREA - Spencer, John S. (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1983)

Michigan's fourth forest inventory : timber volumes and projections of timber supply - Spencer, John S. (North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1984)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1929)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1941)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1942)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden])

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1953)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1985)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1989)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1997)

Missouriensis - Missouri Native Plant Society. (Missouri Native Plant Society, 2019)

Mitteilungen aus dem Zoologischen Museum in Berlin - Zoologisches Museum in Berlin. (In Kommission bei R. Friedländer, 1915)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1961)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1985)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1898)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1899)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1901)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1903)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1906)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1912)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1915)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1921)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1973)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1904)

Mitteilungen des Thüringischen Botanischen Vereins. n. F - Thüringische Botanische Gesellschaft. (Im Selbstverlag des Vereins, 1910)

A monograph of the British phytophagous Hymenoptera ... - Cameron, Peter, 1847 -1912 (Printed for the Ray Society, 1892)

Monographie der Mistel - Neckel, Gustav, 1878 -1940 (Oldenbourg, 1923)

The Monroe Nursery Co. : Ilgenfritz since 1847, wholesale price list. number 958A - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (The Monroe Nursery Co, 1959)

Moon's hardy trees & plant for every place & purpose - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1927)

Moon's hardy trees & plants for every place & purpose - Moon, Samuel C. (Firm) (The Company, 1918)

Moon's hardy trees & plants for every place & purpose : 1923 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Co, 1923)

Moon's hardy trees & plants for every place & purpose : 1924 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Co, 1924)

Moon's hardy trees & plants for every place and purpose 1922 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Co, 1922)

Moon's hardy trees and plant for every place & purpose : 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1926)

Moon's hardy trees and plant for every place and purpose : 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1925)

Moon's hardy trees and plants for every place and purpose : 20% discount from these prices for fall 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1930)

Moon's hardy trees and plants for every place and purpose : 1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1930)

Moon's hardy trees and plants for every place and purpose : 1929 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1929)

Moon's hardy trees and plants for every place and purpose 1921 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Company, 1921)

Moon's plants for every place & purpose, 1928 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moon's Nurseries, 1928)

Moons' hardy trees & plants for every place & purpose - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (William H. Moon Company, 1918)

Moons' Nurseries : hardy trees and plants for every place and purpose 1920 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wm. H. Moon Company], 1920)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1959)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1961)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1964)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1967)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1970)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1974)

Mountain, plain and garden : the magazine of Denver Botanic Gardens - Denver Botanic Gardens. (The Gardens, 1990)

Museum naturalium Academiae upsaliensis cujus partem primam [-XXXIII, ultimam] - Thunberg, Carl Peter, 1743 -1828 (Typis Edmannianis, 1812)

Museum of Economic Botany, Kew. Specimens distributed 1901-1990 - Royal Botanic Gardens, Kew. (1987)

Mycologia - New York Botanical Garden (New York Botanical Garden, 1920)

Mycologisches Centralblatt = Mycological review = Revue mycologique = Revista micologica : Zeitschrift für allgemeine und angewandte Mycologie : Organ für wissenschaftliche Forschung auf den Gebieten der allgemeinen Mycologie, Gärungschemie und technischen Mycologie - Wehmer, C. (Carl), 1858 -1935 (G. Fischer, 1914)

Mycotaxon (Mycotaxon, 2011)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1952)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1964)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1967)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1974)

Narrative of a journey to the shores of the polar sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (J. Murray, 1823)

Narrative of an expedition through the upper Mississippi to Itasca Lake, the actual source of this river : embracing an exploratory trip through the St. Croix and Burntwood (or Broule) Rivers, in 1832 - Schoolcraft, Henry Rowe, 1793 -1864 (Harper, 1834)

Narrative of an expedition through the upper Mississippi to Itasca Lake, the actual source of this river embracing an exploratory trip through the St. Croix and Burntwood (or Broule) rivers in 1832, under the direction of Henry R. Schoolcraft - Schoolcraft, Henry Rowe, 1793 -1864 (Harper & Brothers, 1834)

Narrative of an expedition to the source of St. Peter's river, Lake Winnepeek, Lake of the Woods, &c., performed in the year 1823, ... under the command of Stephen H. Long - Schweinitz, Lewis David von, 1780 -1834 (H. C. Carey & I. Lea, 1824)

Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (J. Murray, 1823)

The native forests of Cuyahoga County, Ohio - Williams, Arthur B. (Arthur Baldwin), 1874 - (Cleveland Museum of Natural History, 1949)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2010)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1843)

Natural history of New York (D. Appleton, 1842)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1980)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2007)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2013)

Il Naturalista siciliano : organo della Società siciliana di scienze naturali - Società siciliana di scienze naturali. (Tip. Luxograph [etc.], 1888)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1870)

Nature in Avon - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1991)

Nature in Avon - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 2009)

Naturwissenschaftliche Rundschau : wöchentliche Berichte über die Fortschritte auf dem Gesammtgebiete der Naturwissenschaften (Druck und verlag von Friedrich Vieweg und Sohn, 1891)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1895)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1921)

The Nelson book [of] trees, hardy shrubs and flowers : landscapes without waiting - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Swain Nelson and Sons Co, 1919)

Neuer Schauplatz der Natur nach den richtigen Beobachtungen und Versuchen in Alphabetischer Ordnung (bey M.G. Weidmanns Erben und Reich, 1775)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1855)

Neuw vollkommentlich Kreuterbuch, mit schönen ... Figuren, aller Gewächs der Bäumen, Stauden und Kräutern ... eygentlich beschrieben ... darinn viel ... Artzney vor allerley innerlichen unnd eusserlichen Kranckheiten, beyde der Menschen, und dess Viehes ... beschrieben werden - Bauhin, Caspar, 1560 -1624 (Durch Nicolaum Hoffmann [Matthias Beckers seligen Wittib] in Verlegung Johannis Bassaei und Johann Dreutels, 1613)

The new 1957 garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Montgomery Ward, 1957)

The new 1958 garden book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Montgomery Ward, 1958)