Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1921)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1922)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1924)

Memoirs of the Indian Museum - Indian Museum. (Manager of Publications [etc.]; Calcutta, Govt. of India Press, 1910)

Memoirs of the Indian Museum - Indian Museum. (Manager of Publications [etc.]; Calcutta, Govt. of India Press, 1913)

Memoirs of the National Museum, Melbourne - National Museum (Australia) (The Museum, 1939)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 2000)

Memoirs of the San Diego Society of Natural History - San Diego Society of Natural History. (The Society, 1970)

Memoirs of the Wernerian Natural History Society - Wernerian Natural History Society. ([The Society], 1824)

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)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1857)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1858)

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 - Berkeley, M. J. (Miles Joseph), 1803 -1889 (J. Van Voorst, 1883)

The microscope and its revelations - Carpenter, William Benjamin, 1813 -1885 (Blakiston, 1891)

The microscope and its revelations - Carpenter, William Benjamin, 1813 -1885 (J. & A. Churchill, 1901)

The microscope and its revelations - Carpenter, William Benjamin, 1813 -1885 (P. Blackiston's Sons and Co, 1901)

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

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

Minutes - Conchological Club of Southern California. (The Club, 1955)

Miscellaneous publications - University of Michigan. Museum of Zoology. (The University, 1916)

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)

Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie - Bayerische Staatssammlung für Paläontologie und Historische Geologie München (Bayerische Staatssammlung für Paläontologie und Historische Geologie, 1970)

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

The mollusca of Georgian Bay - Robertson, Albert Duncan (1915)

The mollusca of Muscatine County and vicinity - Muscatine Conchological Club, Muscatine, Iowa. (S.E. Cassino, 1883)

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

A monograph of the Crag mollusca; or, Descriptions of shells from the middle and upper Tertiaries of the east of England - Wood, Searles V. (Searles Valentine), 1798 -1880 (Palaeontographical Society, 1850)

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)

A monograph of the fossil Estheriae - Jones, T. Rupert (Thomas Rupert), 1819 -1911 (The Palæontographical society, 1862)

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 order Pholadacea, and other papers - Tryon, George W., (George Washington), 1838 -1888 (Merrihew & Thompson, Printers, 1862)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1857)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1862)

A monograph on the Polychaeta of Southern Africa - Day, J. H. (British Museum (Natural History), 1967)

A monograph on the Polychaeta of southern Africa - Day, J. H. (BM(NH), 1967)

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, 1835)

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, 1837)

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)

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, 1840)

Monthly American Journal of Geology & Natural Science (1831)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1834)

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, 1872)

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

Museum paper - Geological Survey of Alabama. Museum. (1910)

Museum paper - Alabama Museum of Natural History. (Alabama Museum of Natural History, 1921)

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

The mussel resources of the Illinois River - Danglade, Ernest, 1865 - (Govt. Print. Off, 1914)

The mussels of the Cumberland River and its tributaries - Wilson, Charles Branch, 1861 -1941 (Govt. print. off, 1914)

Die Mytiliden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte, I. Teil - Stazione zoologica di Napoli. (R. Friedländer & Sohn, 1902)

Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft - Deutsche Malakozoologische Gesellschaft (Verlag W. Küchler, 1904)

Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft - Deutsche Malakozoologische Gesellschaft (Verlag W. Küchler, 1913)

[The Naiadaceae of North America] - Morong, Thomas, (Torrey Botanical Club, 1893)

The Naiades of Missouri - Utterback, William I. (University Press, 1916)