A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1895)

A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants - Balfour, John Hutton, 1808 -1884 (A. and C. Black, 1875)

A manual of botany: being an introduction to the study of the structure, physiology, and classification of plants - Balfour, John Hutton, 1808 -1884 (J. J. Griffin [etc.] 1851, 1851)

A manual of botany: including the structure, functions, classification, properties and uses of plants - Bentley, Robert, 1821 -1893 (John Churchill, 1861)

Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata - Hyatt, Alpheus, 1838 -1902 (Published by the Author, 1888)

Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata - Hyatt, Alpheus, 1838 -1902 (Published by the Author, 1894)

Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata - Hyatt, Alpheus, 1838 -1902 (Published by the Author, 1885)

Manual of entomology : with special reference to economic entomology - Maxwell-Lefroy, H. (Harold), 1877 -1925 (Longmans, Green & Co, 1923)

A manual of exotic ferns & Selaginella comprising descriptions of over one thousand species and varieties, and upwards of six hundred synonyms; also notes on their history, culture, & mangement - Sandford, E. (H. J. Infield, 1882)

Manual of fruit insects - Crosby, Cyrus Richard, 1879 -1937 (The Macmillan company, 1914)

Manual of fruit insects - Crosby, Cyrus Richard, 1879 -1937 (The Macmillan company, 1915)

A manual of gardening for Bengal and Upper India - Firminger, Thomas Augustus Charles, 1812 -1884 (Thacker, Spink and co.; [etc., etc.], 1874)

A manual of Indian timbers; an account of the growth, distribution, and uses of the trees and shrubs of India and Ceylon with descriptions of their wood-structure - Gamble, J. S. (James Sykes), 1847 -1925 (S. Low, Marston & co. ltd, 1902)

A manual of Indian timbers: an account of the structure, growth, distribution, and qualities of Indian woods - Gamble, J. S. (James Sykes), 1847 -1925 (Office of the Superintendent of Govt. Printing, 1881)

Manual of the New Zealand flora - Cheeseman, T. F. (Thomas Frederick), 1846 -1923 (Govt. Printer, 1925)

Manual of the New Zealand flora - Cheeseman, T. F. (Thomas Frederick), 1846 -1923 (J. Mackay, Govt. Printer, 1906)

Manuel d'histoire naturelle médicale - Royal College of Physicians of Edinburgh. (G. Bailliere, 1871)

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)

Mappa florestal - Gonzaga de Campos. (Typ. da Directoria do Servio de Estatistica, 1912)

Maryland geological survey - Maryland Geological Survey. (The Johns Hopkins Press, 1911)

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Mémoires sur la famille des fougères - Fée, Antoine Laurent Apollinaire, 1789 -1874 (Impr. de Ve. Berger-Levrault, 1852)

Mémoires sur la famille des fougères - Fée, Antoine Laurent Apollinaire, 1789 -1874 (Impr. de Ve. Berger-Levrault, 1857)

Mémoires sur la famille des fougères - Fée, Antoine Laurent Apollinaire, 1789 -1874 (Impr. de Ve. Berger-Levrault, 1866)

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1894)

Mededeelingen van 's Rijks Herbarium - Rijksherbarium (Netherlands) ([Rijks Universiteit, Rijks Herbarium], 1916)

Medicinisch-pharmaceutische botanik zugleich als handbuch der systematischen botanik fur botaniker, arzte und apotheker - Luerssen, Christian, 1843 -1916 (H. Haessel, 1879)

Mélanges biologiques tirés du Bulletin de l'Académie impériale des sciences de St. Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Eggers et comp, 1857)

The Australian Museum Memoir (Australian Museum, 1889)

Memoir - Cornell University. Agricultural Experiment Station. (1921)

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

Mémoire sur les fougères du Mexique, et considerations sur la géographie botanique de cette contrée - Galeotti, H. (Henri), 1814 -1858 (Hayez, 1842)

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, 1895)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1872)

Mémoires de la Société des Sciences Naturelles de Neuchâtel - Société des sciences naturelles de Neuchâtel (1914)

Mémoires de la Société des sciences naturelles de Strasbourg - Société des sciences naturelles de Strasbourg. (Typ. de G. Silbermann, 1858)

Mémoires de la Société du muséum d'histoire naturelle de Strasbourg - Société du musée d'histoire naturelle de Strasbourg. (F. G. Levrault, 1850)

Mémoires de la Société géologique de France - Société géologique de France. (F.-G. Levrault, 1862)

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Mémoires du Muséum national d'histoire naturelle. Série B, Botanique - Muséum national d'histoire naturelle (France) (Ed. du Museum, 1962)

Mémoires presentés a L'Institut des Sciences, Lettres et Arts, par divers savants èt lus dans ses assemblées : Sciences, Mathématiques et Physiques - Académie royale des sciences (France) (1841)

Memoirs and proceedings of the Manchester Literary & Philosophical Society - Manchester Literary; Philosophical Society. (The Society, 1907)

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Memoirs of the National Museum, Melbourne - National Museum (Australia) (The Museum, 1939)

Memoirs of the National Museum, Melbourne - National Museum (Australia) (The Museum, 1943)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1899)

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Memorial of life and entomologic work of Joseph Albert Lintner ... state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorial of life and entomologic work of Joseph Albert Lintner, state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

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, 1903)

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

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1912)

Mexicanas plantas nuper a collectoribus expeditionis scientificae allatas :aut longis ab annis in herbario musei parisiensis depositas - Fournier, Eugène, 1834 -1884 (ex Typographeo Reipublicae, 1872)

Mexicos Bregner, en systematisk, critisk, plantegeographisk Undersögelse - Liebmann, F. M. (Frederik Michael), 1813 -1856 (s. n.], 1848)

Meyers Konversations-Lexikon : ein Nachschlagewerk des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Bibliographisches Institut, 1896)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

Michel's wholesale priced list of plants and bulbs for florists - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Michel Plant and Bulb Co, 1893)

The micrographic dictionary : a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1871)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1875)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1883)

The micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John Van Voorst, 1856)

The microscopist : a compendium of microscopic science including the use of the microscope, mounting and preserving microscopic objects, the microscope in chemistry, biology, histology, botany, geology, pathology, etc - Wythe, J. H. (Joseph Henry), 1822 -1901 (P. Blakiston, Son & Co, 1883)

The microscopist : a manual of microscopy and compendium of the microscopic sciences - Wythe, J. H. (Joseph Henry), 1822 -1901 (Lindsay & Blakiston, 1880)

Mission scientifique au Mexique et dans l'Amérique Centrale : ouvrage publié par ordre de S.M. l'Empereur et par les soins du Ministre de l'instruction publique - Fournier, Eugène, 1834 -1884 (Imprimerie impériale, 1872)

Mission scientifique du cap Horn, 1882-1883 - Mission scientifique du Cape Horn, 1882-1883. (Gauthier-Villars, 1889)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1917)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1927)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1970)

Mitteilungen aus dem Botanischen Museum der Universität Zürich - Universität Zürich. Botanisches Museum. (Botanisches Museum der Universität Zürich], 1920)

Mitteilungen aus dem Königlichen Mineralogisch-Geologischen und Prähistorischen Museum in Dresden - Königliches Mineralogisch-Geologisches und Prähistorisches Museum (Germany) (W. Engelmann, 1897)

Mitteilungen aus dem Naturwissenschaftlichen Verein für Neuvorpommern und Rügen in Griefswald ... - Naturwissenschaftlicher Verein für Neuvorpommern und Rügen, Greifswald. (1882)

Mitteilungen aus den Botanischen Staatsinstituten in Hamburg - Botanische Staatsinstitut (Hamburg, Germany) (L. Gräfe & Sillem, 1901)

Mitteilungen der Bayerischen Botanischen Gesellschaft zur Erforschung der Heimischen Flora (E.V.) - Bayerische Botanische Gesellschaft zur Erforschung der Heimischen Flora. (Selbstverlag der Gesellschaft, 1913)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1904)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1909)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1920)

Mittheilungen aus dem Gesammtgebiete der Botanik - Luerssen, Christian, 1843 -1916 (1871)