Memoirs of the Geological Survey of India - Geological Survey of India. (Pub. by order of the Governor-General of India, 1913)

Memoirs of the Geological Survey of India - Geological Survey of India. (Pub. by order of the Governor-General of India, 1923)

Memoirs of the Geological Survey of New South Wales. Palaeontology - Geological Survey of New South Wales. (C. Potter, 1888)

Memoirs of the National Academy of Sciences - National Academy of Sciences (U.S.) (Government Printing Office, 1893)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 2010)

Memoirs read before the Boston Society of Natural History - Boston Society of Natural History. ([Boston Society of Natural History], 1872)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Les merveilles de la nature : l'homme et les animaux : description populaire des races humaines et des règne animal - Brehm, Alfred Edmund, 1829 -1884 (J.-B. Bailliere et Fils, 1893)

Mesozoic and Tertiary insects of Queensland and New South Wales. With 6 text-figures and 9 plates - Dunstan, Benjamin 1864 -1933 (A. J. Cumming, government printer, 1916)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (Verlag des Bibliographischen Instituts, 1890)

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)

Microscopy for beginners, or, Common objects from the ponds and ditches - Stokes, Alfred C. (Alfred Cheatham) (Harper & brothers, 1887)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1883)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1893)

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)

Mitteilungen aus dem Zoologischen Museum in Berlin - Zoologisches Museum in Berlin. (In Kommission bei R. Friedländer, 1901)

Mitteilungen aus dem Zoologischen Museum in Berlin - Zoologisches Museum in Berlin. (In Kommission bei R. Friedländer, 1918)

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

Mitteilungen des Naturwissenschaftlichen Vereines für Steiermark - Molisch, Hans, 1856 -1937 (1894)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1895)

Mittheilungen der Naturforschenden Gesellschaft in Bern - Naturforschende Gesellschaft in Bern. (Naturforschenden Gesellschaft in Bern], 1891)

Der mittlere Jura im nordwestlichen Deutschland : von den Posidonienschiefern bis zu den Ornatenschichten, mit besonderer Berücksichtigung seiner Molluskenfauna / von D. Brauns - Brauns, David August, 1827 -1893 (T. Fischer, 1869)

A monograph of the British fossil bivalved Entomostraca from the Carboniferous formations. Part 1, The Cypridinadæ and their allies by T. Rupert Jones, James W. Kirkby and George S. Brady - Brady, George Stewardson, 1832 -1921 (Palæontographical Society, 1874)

A monograph of the British Palæozoic Phyllopoda (Phyllocarida, Packard) - Jones, T. Rupert (Thomas Rupert), 1819 -1911 (Printed for the Palæontographical Society, 1888)

A monograph of the British Palæozoic Phyllopoda (Phyllocarida, Packard) - Jones, T. Rupert (Thomas Rupert), 1819 -1911 (Printed for the Palæontographical Society, 1892)

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

A monograph of the fossil insects of the British coal measures - Bolton, Herbert, 1863 -1936 (Printed for the Palaeontographical society, 1921)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1856)

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