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)

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 - Griffith, J. W. (John William) (John Van Voorst, 1856)

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)

Mineral resources of the Kotsina-Chitina region, Alaska - Maddren, Alfred Geddes, (Govt. print. off, 1909)

Mineralogische Mittheilungen (1874)

Minnesota botanical studies - Geological; Natural History Survey of Minnesota. (Geological and Natural History Survey of Minnesota, 1896)

Minor products of Philippine forests - Brown, William Henry, 1884 -1939 (Bureau of Printing, 1920)

Miscelánea - Academia Nacional de Ciencias en Córdoba. (1920)

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)

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)

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

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

Mitteilungen der Kaiserlich-Königlichen Geographischen Gesellschaft - Kaiserlich-Königliche Geographische Gesellschaft. (1857)

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

Mittheilungen aus dem Jahrbuche der Kgl. ungarischen Geologischen Anstalt - Magyar Királyi Földtani Intézet. (Buchdruckerei der Stum A.-G., [etc.], 1873)

Mittheilungen der Naturforschenden Gesellschaft in Zürich - Naturforschende Gesellschaft in Zürich. (1847)

Möllers Deutsche Gärtner-Zeitung - Möller, Ludwig. ([Ludwig Möller, 1886)

Monatsschrift des Vereines zur Beförderung des Gartenbaues in den Königl. Preussischen Staaten und der Gesellschaft der Gartenfreunde Berlins - Gesellschaft des Gartenfreunde Berlins. (P. Parey [etc.], 1880)

Le Monde des plantes - Académie internationale de géographie botanique. (Impr. Edmond Monnoyer, 1895)

A monograph of the British Eocene flora - Ettingshausen, Constantin, Freiherr von, 1826 -1897 (Printed for the Palæontographical society, 1879)

A monograph of the British Eocene flora - Ettingshausen, Constantin, Freiherr von, 1826 -1897 (Printed for the Palæontographical society, 1883)

A monograph of the jacamars and puff-birds, or families Galbulidæ and Bucconidæ - Sclater, Philip Lutley, 1829 -1913 (Published for the author by R.H. Porter [etc, 1882)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1879)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1880)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1882)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1883)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1883)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1889)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1892)

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, 1882)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1905)

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)

Morphology of angiosperms : (Morphology of spermatophytes, Part II) - Coulter, John Merle, 1851 -1928 (D. Appleton, 1909)

Morphology of angiosperms (Morphology of spermatophytes, Part II) - Coulter, John Merle, 1851 -1928 (Appleton & Co, 1903)

Morphology of angiosperms (Morphology of spermatophytes. Part II) - Coulter, John Merle, 1851 -1928 (D. Appleton, 1903)

Morphology of gymnosperms - Coulter, John Merle, 1851 -1928 (University of Chicago Press, 1910)

Morphology of gymnosperms - Coulter, John Merle, 1851 -1928 (University of Chicago Press, 1917)

The morphology of pteridophytes; the structure of ferns and allied plants - Sporne, K. R. (Hutchinson University Library, 1962)

Morris Arboretum bulletin - University of Pennsylvania. Morris Arboretum. (Morris Arboretum, etc, 1965)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 1994)