Monograph of the land & freshwater Mollusca of the British isles - Roebuck, William Denison, 1851 -1919 (Taylor brothers, 1900)

Monograph of the land & freshwater Mollusca of the British isles - Roebuck, William Denison, 1851 -1919 (Taylor brothers, 1914)

A monograph of the Membracidæ - Poulton, Edward Bagnall, Sir, 1856 -1943 (L. Reeve & co., limited, 1903)

Monograph of the naiades of Pennsylvania ... - Ortmann, Arnold E. 1863 -1927 (Board of Trustees of the Carnegie Institute, 1911)

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, 1850)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1864)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1877)

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, 1894)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1895)

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

A monograph on Carbonicola, Anthracomya, and Niadites - Hind, Wheelton, 1859 -1920 (Printed for the Palæontographical Society, 1894)

A monograph on the development of elasmobranch fishes - Balfour, Francis M. (Francis Maitland), 1851 -1882 (1878)

Monograph on the Lias Ammonites of the British islands - Wright, Thomas, 1809 -1884 (Printed for the Palæontographical society, 1879)

Monographie de la famille des hirudinées - Moquin-Tandon, Alfred, 1804 -1863 (J. B. Baillière, 1846)

Monographie der capitelliden des golfes von Neapel und der angrenzenden meeres-abschnitte, nebst untersuchungen zur vergleichenden anatomie und physiologie - Eisig, Hugo 1847 -1920 (Friedländer, 1887)

Monographie des élatérides - Candèze, E. C. (Ernest Charles), 1827 -1898 (H. Dessain, 1857)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1885)

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, 1888)

Monography of the family Unionidæ, or, Naiades of Lamarck (fresh water bivalve shells) of North America ... - Conrad, T. A. (Timothy Abbott), 1803 -1877 (J. Dobson, 1836)

Monography of the family Unionidæ, or, Naiades of Lamarck (fresh water bivalve shells) of North America ... - Conrad, T. A. (Timothy Abbott), 1803 -1877 (J. Dobson, 1838)

The Monthly microscopical journal : transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (Robert Hardwicke, 1876)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1871)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1874)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1875)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1876)

Monthly microscopical journal: transactions of the Royal Microscopical Society, and record of histological research at home and abroad - Royal Microscopical Society (Great Britain) (R. Hardwicke, 1877)

Morphogenetische Studien : als Betrag zur Methodologie zoologischer Forschung - Garbowski, Tadeusz, 1869 -1940 (G. Fischer, 1903)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1904)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (Fischer, 1922)

Morphologie und Biologie der Algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1922)

Morphologie und biologie der algen - Oltmanns, Friedrich, 1860 -1945 (G. Fischer, 1905)

Morphologie und Biologie der Zelle - Gurvich, Aleksandr Gavrilovich, 1874 - (G. Fischer, 1904)

Morphologische studien über die gestaltungs-gesetze der naturkörper überhaupt und der organischen insbesondere ... - Bronn, H. G. (Heinrich Georg), 1800 -1862 (C.F. Winter'sche Verlagshandlung, 1858)

Morphologische und physiologische Analyse der Zelle der Pflanzen und Tiere : Grundzüge unseres Wissens über den Bau der Zelle und über dessen Beziehung zur Leistung der Zelle - Meyer, Arthur, 1850 -1922 (G. Fischer, 1920)

Morphologisches Jahrbuch (Wilhelm Engelmann, 1876)

Morphology of invertebrate types - Petrunkevitch, Alexander, 1875 -1964 (MacMillan, 1916)

Morphology of invertebrate types - Petrunkevitch, Alexander, 1875 -1964 (Macmillan Company, 1916)

The mountain - Jackson, Robert Montgomery Smith, 1815 -1865 (J. B. Lippincott & Co, 1860)

The Museum (W.F. Webb, 1896)

The Museum (W.F. Webb, 1899)

Museum Normanianum, or A catalogue of the invertebrata of Europe, and the Arctic and North Atlantic oceans, which are contained in the collection of the Rev. Canon A. M. Norman, ... . I.-XII. Printed for private distribution - Norman, Alfred Merle, 1831 -1918 (Morton, printer, 1886)

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

The museum of natural history, with introductory essay on the natural history of the primeval world : being a popular account of the structure, habits, and classification of the various departments of the animal kingdom, quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - White, Adam, 1817 -1879 (William MacKenzie, 1869)

The mussel fauna of central and northern Minnesota - Wilson, Charles Branch, 1861 -1941 (Govt. print. off, 1914)

The mussel fauna of central and northern Minnesota - Wilson, Charles Branch, 1861 -1941 (G.P.O, 1914)

The mussel fauna of the Kankakee basin - Wilson, Charles Branch, 1861 -1941 (Govt. print. off, 1912)

The mussel fauna of the Maumee River - Wilson, Charles Branch, 1861 -1941 (Govt. print. off, 1912)