The Mesabi iron-bearing district of Minnesota - Leith, C. K. (Charles Kenneth), 1875 -1956 (Govt. Print. Off, 1903)

Mesozoic fossils - Geological Survey of Canada (1876)

Methods for obtaining and handling marine eggs and embryos [by] Donald P. Costello and Catherine Henley - Marine Biological Laboratory (Woods Hole, Mass.) (1971)

Methods for obtaining and handling marine eggs and embryos [by] D.P. Costello [and others - Marine Biological Laboratory (Woods Hole, Mass.) (1957)

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 (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, 1864)

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

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

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1878)

Mindeskrift i anledning af hundredaaret for Japetus Steenstrups fodsel udg. af en kreds af naturforskere ved Hector F.E. Jungersen og Eug. Warming. Udgivelsen bekostet af Carlsbergfondet - Warming, Eugenius, 1841 -1924 (B. Lunos bogtrykkeri, 1914)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1812)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1818)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1823)

The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth - Sowerby, James de Carle, 1787 -1871 (Printed by B. Meredith [etc.], 1829)

Minerals and geology of central Canada : comprising the provinces of Ontario and Quebec - Chapman, E. J. (Edward John), 1821 -1904 (Copp, Clark, 1888)

The minerals and geology of central Canada, comprising the provinces of Ontario and Quebec - Chapman, E. J. (Edward John), 1821 -1904 (The Copp, Clark company (limited), 1888)

Minutes - Conchological Club of Southern California. (The Club, 1941)

Minutes - Conchological Club of Southern California. (The Club, 1944)

Minutes - Conchological Club of Southern California. (The Club, 1946)

Minutes - Conchological Club of Southern California. (The Club, 1947)

Minutes - Conchological Club of Southern California. (The Club, 1950)

Minutes - Conchological Club of Southern California. (The Club, 1951)

Minutes - Conchological Club of Southern California. (The Club, 1953)

Miocene - Maryland Geological Survey. (John Hopkins Press, 1904)

Miocene - Maryland Geological Survey. (Johns Hopkins Press, 1904)

Mission du Service Geographique de l'Armée pour la mesure d'un arc de méridien équatorial en Amérique du Sud sous le contrôle scientifique de l'Académie des Sciences, 1899-1906 - France. (Gauthier-Villars, Imprimeur Libraire du Bureau des Longitudes, de l'Ecole Polytechnique, 1910)

Mission Gruvel sur la côte occidentale d’Afrique (1909-1910). Mollusques marins - Dautzenberg, Ph. (Philippe), 1849 -1935 (Masson et cie, 1912)

Mission Pavie Indo-Chine, 1879-1895. Études diverses - Pavie, Auguste, 1847 -1925 (E. Leroux, 1898)

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

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1884)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1913)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1986)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1990)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1993)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1890)

Mitteilungen der Kaiserlich-Königlichen Geographischen Gesellschaft - Kaiserlich-Königliche Geographische Gesellschaft. (1859)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1878)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1882)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1896)

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1905)

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

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

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1879)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1881)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1884)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1886)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1894)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1899)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1903)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1906)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1908)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1910)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1843)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1867)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1901)

Mittheilungen über St. Vaast-la-Hougue und seine Meeres-, besonders seine Annelidenfauna - Grube, Adolph Eduard, 1812 -1880 ([publisher not identified], 1868)

Mollusca - Fleming, John, 1785 -1857 ([Adam and Charles Black], 1830)

Mollusca & shells - Gould, Augustus A. (Augustus Addison), 1805 -1866 (Printed by C. Sherman, 1856)

Mollusca and Crustacea of the Miocene formations of New Jersey - Whitfield, R. P. (Robert Parr), 1828 -1910 (Govt. Print. Off, 1894)

Mollusca and Crustacea of the Miocene formations of New Jersey - Whitfield, R. P. (Robert Parr), 1828 -1910 (Govt. print. off, 1894)

The Mollusca and the Brachiopoda - Dall, William Healey, 1845 -1927 (Harvard College, Museum of Comparative Zoology], 1908)

Mollusca dredged and collected by T.A. Verkruzen, in 1876, in the neighbourhood of St. John's Newfoundland including a few species obtained from the Bay of Fundy - Verkrüzen, T. A. (J.C. Withers, 1877)

Mollusca. (Freshwater Gastropoda & Pelectpoda) - Preston, Hugh Berthon. (Taylor and Francis; [etc., etc.], 1915)

Mollusca für 1901-1904 : geographische Verbreitung, Systematik und Biologie - Kobelt, Wilhelm, 1840 -1916 (Nicolai?, 1905)

Mollusca marina : Beschreibung und Abbildung neuer oder wenig gekannter Meeres-Conchylien - Dunker, Wilhelm, 1809 -1885 (Fischer, 1858)

The Mollusca of Dorsetshire : (marine, estuarine, freshwater, and land) and the Brachiopoda - Mansel-Pleydell, John Clavell, 1817 -1902 ("Dorset county chronicle" printing works, 1898)

The Mollusca of Dorsetshire (marine, estuarine, freshwater, and land) and the Brachiopoda - Mansel-Pleydell, John Clavell, 1817 -1902 ("Dorset County Chronicle" Print. Works, 1898)

The Mollusca of the Chicago area, by Frank Collins Baker ... - Baker, Frank Collins, 1867 -1942 (1898)

The Mollusca of the Chicago area, by Frank Collins Baker - Baker, Frank Collins, 1867 -1942 (1902)

The Mollusca of the Firth of Clyde, being a catalogue of recent marine species found in that estuary - Brown, Alfred (Hugh Hopkins, 1878)

Mollusca testacea marium britannicorum : a history of the British marine testaceous Mollusca distributed in their natural order, on the basis of the organization of the animals : with references and notes on every British species - Clark, William, of Bath. (J. Van Voorst, 1855)