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)

Manual of tropical medicine - Chalmers, Albert John, 1870 -1920 (Baillière, Tindall and Cox, 1919)

Manuel d'actinologie ou de zoophytologie - Blainville, H.-M. Ducrotay de (Henri-Marie Ducrotay), 1777 -1850 (1834)

Marine shells of South Africa: a catalogue of all the known species - Sowerby, G. B. (George Brettingham), 1843 -1921 (Sowerby, 1892)

Mary's scrap book - Howard, Mary Matilda, (Wm. S. Orr and Co, 1840)

Massachusetts agricultural journal - Massachusetts Society for Promoting Agriculture. (Massachusetts Society for Promoting Agriculture, 1826)

Matabele land and the Victoria Falls : a naturalist's wanderings in the interior of South Africa, from the letters and journals of the late Frank Oates - Oates, Frank. (C.K. Paul, 1881)

Materia medica of vegetable and animal origin with notes on the pharmacy of official drugs - Humphrey, John, 1862 - (Henry Kimpton, 1907)

Materials for a flora of the Malayan Peninsula. Volume 2, 1896-1902 - King, George, 1840 -1909 (Printed at the Baptist Mission Press, 1889)

Materials for a flora of the Malayan Peninsula - King, George, 1840 -1909 (1889)

Materica medica of India and their therapeutics - Katrak, Nanabhai Navrosji. (Printed at the "Times of India" Press, 1903)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1888)

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1893)

Medical botany : containing systematic and general descriptions, with plates of all the medicinal plants, comprehended in the catalogues of the materia medica, as published by the Royal Colleges of Physicians of London, Edinburgh, and Dublin, together with the principal medicinal plants not included in those pharmocopoeias, accompanied with a circumstantial detail of their medicinal effects, and of the diseases in which they have been most successfully employed - Hooker, William Jackson, Sir, 1785 -1865 (J. Bohn, 1832)

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 botany : or, illustrations and descriptions of the medicinal plants of the London, Edinburgh and Dublin pharmacopoeias; comprising a popular and scientific account of all those poisonous vegetables that are indigenous to Great Britain - Stephenson, John, 1790 -1864 (1831)

Medical flora, or, Manual of the medical botany of the United States of North America ... - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (Atkinson & Alexander, 1828)

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)

A medical manual for Apothecaries' Hall and other medical boards - Steggall, John, 1795? -1871 (John Churchill, 1852)

Medicinal herbs and poisonous plants - Ellis, David, 1874 -1937 (Blackie and Son, 1913)

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)

The medicinal plants of Tennnessee : exhibiting their commercial value : with an analytical key, descriptions in aid of their recognition, and notes relating to their distribution, time and mode of collection, and preparation for the drug market - Gattinger, Augustin, 1825 -1903 (Franc. M. Paul, Printer to the State, 1894)

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

The Australian Museum Memoir (Australian Museum, 1896)

Mémoire sur l'organisation et le développement de la comatule de la Méditerranée (Antedon rosacea, Linck) - Perrier, Edmond, 1844 -1921 (G. Masson, 1886)

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

Memoires de la Société (Royale) d'Emulation d'Abbeville - Société royale d'émulation d'Abbeville. (Société d'Emulation d'Abbeville, 1833)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1978)

Mémoires sur les lépidoptères - Grum-Grzhimailo, G. E. 1860 -1936 (Imprimerie de M.M. Stassuléwitch, 1884)

Mémoires sur les lépidoptères - Grum-Grzhimailo, G. E. 1860 -1936 (Imprimerie de M.M. Stassuléwitch, 1887)

Mémoires sur les lépidoptères - Grum-Grzhimailo, G. E. 1860 -1936 (Imprimerie de M.M. Stassuléwitch, 1892)

Memoirs and proceedings of the Manchester Literary & Philosophical Society - Manchester Literary; Philosophical Society. (The Society, 1917)

Memoirs of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (The Academy, 1849)

Memoirs of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (The Academy, 1857)

Memoirs of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History - Bernice Pauahi Bishop Museum. ([Bishop Museum Press], 1918)

Memoirs of the Department of Agriculture in India. Botanical series - Agricultural Research Institute (India) (Published for the Imperial Dept. of Agriculture in India by Thacker, Spink, 1917)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1897)

Memoirs of the Museum of Victoria - Museum of Victoria. (: The Museum of Victoria, 1989)

Memoirs of the National Academy of Sciences - National Academy of Sciences (U.S.) (Government Printing Office, 1896)

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

Memoirs of the Wernerian Natural History Society - Wernerian Natural History Society. ([The Society], 1821)

Memoirs of the Wernerian Natural History Society - Wernerian Natural History Society. ([The Society], 1838)

Memoirs read before the Boston Society of Natural History - Boston Society of Natural History. ([Boston Society of Natural History], 1890)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1880)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1889)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1865)

Michel's revised wholesale price list : plants and bulbs for florists - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Michel Plant and Seed Co, 1892)

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)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1882)

Mikrographie des Holzes der auf Java vorkommenden Baumarten, im Auftrage des Kolonial-Ministeriums - Koorders, Sijfert Hendrik, 1863 -1919 (E. J. Brill, 1918)

Minnesota botanical studies - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey of Minnesota, 1903)

Minnesota trees and shrubs : an illustrated manual of the native and cultivated woody plants of the State - Clements, Frederic E. (Frederic Edward), 1874 -1945 (University of Minnesota, 1912)

Miscellanea Curiosa, sive Ephemiridum Medico-Physicarum Germanicarum Academiae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (1687)

The miscellaneous botanical works of Robert Brown - Brown, Robert, 1773 -1858 (Published for the Ray society by R. Hardwicke, 1866)

The miscellaneous botanical works of Robert Brown ... - Brown, Robert, 1773 -1858 (Published for the Ray society by R. Hardwicke, 1866)

The miscellaneous botanical works of Robert Brown ... - Brown, Robert, 1773 -1858 (Published for the Ray society by R. Hardwicke, 1867)

The miscellaneous botanical works of Robert Brown vol. I, containing I. geographical-botanical, and II. structural and physiological memoirs - Brown, Robert, 1773 -1858 (Published for the Ray Society by R. Hardwicke, 1866)

The miscellaneous botanical works of Robert Brown vol. II, containing III. systematic memoirs, and IV. contributions to systematic works - Brown, Robert, 1773 -1858 (Published for the Ray Society by R. Hardwicke, 1867)

Miscellaneous papers on the botany of Michigan - Dodge, C. K. (Charles Keene), 1844 -1918 (Wynkoop Hallenbeck Crawford, State Printers, 1921)

Mississippi: its climate, soil, productions, and agricultural capabilities - Hurt, Alden Bailey. (Govt. Print. Off, 1883)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1894)

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

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1953)

Modern biologic therapeusis; a concise and practical treatise on biologic products for the use of practitioners in the modern application of immunology to therapeutics - Lederle Laboratories. Medical Department. (Medical department of the Lederle antitoxin laboratories, 1915)

Modern medicine and bacteriological world ([s.n.], 1893)

The Mollusca of Funafuti, and supplement. From: The atoll of Funafuti, Ellice group: its zoology, botany, ethnology, and general structure based on collections made by Mrs. Charles Hedley, of the Australian museum, Sydney, N. S. W - Australian Museum (1896)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1882)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1891)

A monograph of the Foraminifera of the Crag - Sherborn, Charles Davies, 1861 -1942 (Printed for the Palaeontographical Society, 1866)

A monograph of the fossil Polyzoa of the Crag - Busk, George, 1807 -1886 (Printed for the Palæontographical society, 1859)

Monograph of the naiades of Pennsylvania ... - Ortmann, Arnold E. 1863 -1927 (Board of Trustees of the Carnegie Institute, 1919)

A monograph of the Najades of Pennsylvania - Ortmann, Arnold E. 1863 -1927 (Published by the authority of the Board of Trustees of the Carnegie Institute, 1911)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1896)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1913)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1895)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1906)

A montane rain-forest; a contribution to the physiological plant geography of Jamaica - Shreve, Forrest, 1878 -1950 (Carnegie Institution of Washington, 1914)

More beetles. Translated by Alexander Teixeira de Mattos - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead, 1922)

More letters of Charles Darwin : a record of his work in a series of hitherto unpublished letters - Darwin, Charles, 1809 -1882 (J. Murray, 1903)