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Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1909)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1897)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1910)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1913)

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1893)

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Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1841)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1873)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1876)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1886)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1888)

Michell's highest quality seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell, 1899)

Michell's seeds, bulbs, plants, 1890-1946 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell Co, 1946)

Michell's seeds, bulbs, plants, 1942 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell Co, 1942)

Michell's seeds, bulbs, plants, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell Co, 1943)

Michell's seeds, bulbs, plants, 1945 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell Co, 1945)

Michell’s highest quality seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry F. Michell, 1900)

The microscope : its history, construction, and applications : being a familiar introduction to the use of the instrument and the study of microscopical science - Hogg, Jabez, 1817 -1899 (Published at the Office of the Illustrated London Library, and W.S. Orr, 1854)

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

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

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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, 1868)

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, 1900)

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

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Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1987)

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Mollusca ... - Gude, Gerard Kalshoven, 1858 - (Taylor and Francis; [etc., etc.], 1914)

Mollusca ... - Gude, Gerard Kalshoven, 1858 - (Taylor and Francis; [etc., etc.], 1921)

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

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

The mollusca collected by the University of Michigan-Walker expedition in southern Vera Cruz, Mexico. I - Baker, H. Burrington (Horace Burrington), 1889 -1971 (The University, 1922)

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

Mollusca–II. (Trochomorphidae–Janellidae) - Gude, Gerard Kalshoven, 1858 - (Taylor and Francis, 1914)

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

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

Mollusca of the southwestern states. I-XI ... - Pilsbry, Henry Augustus, 1862 -1957 (1905)

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)

The molluscan family Planorbidae - Baker, Frank Collins, 1867 -1942 (The University of Illinois Press, 1945)

Molluschi Borneensi - Issel, Arturo, 1842 -1922 (Tipografia del R. Instituto Sordo-Muti, 1874)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1872)

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, 1895)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1896)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1897)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1904)

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Die Mollusken-Fauna Mitteleuropa's - Clessin, Stephan, 1833 -1911 (Bauer & Raspe, 1884)

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Die Molluskenfauna des Schweizerischen Nationalparks - Bütikofer, Ernst, 1885 -1960 (1920)

Molluskenfauna von Schlesien - Merkel, Eduard (J.U. Kern's Verlag, 1894)

The mollusks of western North America - Carpenter, Philip P. (Philip Pearsall), 1819 -1877 (Smithsonian Institution, 1872)

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A monograph of Australian land shells - Cox, James Charles (W. Maddock; [etc., etc.], 1868)

A monograph of Carboniferous and Permian Foraminifera (the genus Fusulina excepted) - Brady, Henry Bowman, 1835 -1891 (Printed for the Palæontographical Society, 1876)

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A monograph of the British fossil corals - Haime, Jules, 1824 -1856 (Printed for the Palaeontographical society, 1850)

A monograph of the British fossil corals - Haime, Jules, 1824 -1856 (Printed for the Palaeontographical society, 1852)

A monograph of the Crag Mollusca : with descriptions of shells from the upper Tertiaries of the British Isles - Wood, Searles V. (Searles Valentine), 1798 -1880 (Printed for the Palæontographical society, 1848)

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

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, 1852)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1868)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1888)

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