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

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

The microscopic anatomy of the teeth - Mummery, John Howard, 1847 - (1919)

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)

Mionelminthes, Trichoplax und Trematodes - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (C.F. Winter, 1889)

Mionelminthes, Trichoplax und Trematodes - Pagenstecher, H. Alexander (Heinrich Alexander), 1825 -1889 (C.F. Winter, 1893)

Mitteilungen aus dem Naturwissenschaftlichen Verein für Neuvorpommern und Rügen in Griefswald ... - Naturwissenschaftlicher Verein für Neuvorpommern und Rügen, Greifswald. (1899)

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

Mittheilungen aus dem Jahrbuche der Kgl. ungarischen Geologischen Anstalt - Magyar Királyi Földtani Intézet. (Buchdruckerei der Stum A.-G., [etc.], 1902)

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, 1886)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1888)

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 aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1914)

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)

Molluscorum Britanniæ synopsis : A synopsis of the Mollusca of Great Britain - Gray, John Edward 1800 -1875 (J. van Voorst, 1852)

Die Molluskenfauna des Eisfjordes - Odhner, Nils Hj. (Nils Hjalmar), 1884 -1973 (Almqvist & Wiksell, 1915)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1859)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1890)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1905)

Monitore zoologico italiano - Unione zoologica italiana. (Instituto anatomico della R. Università di Siena, 1917)

Monitoring the marine environment of Long Island Sound at Millstone Nuclear Power Station, Waterford, Connecticut : three operational studies, 1986-1987 - Northeast Utilities Service Company. (Northeast Utilities, 1988)

Monitoring the marine environment of Long Island Sound at Millstone Nuclear Power Station, Waterford, Connecticut : summary of studies prior to Unit 3 operation - Northeast Utilities Service Company. Environmental Laboratory. (Northeast Utilities, 1987)

Monogenetic trematodes : their systematics and phylogeny - Bykhovskiĭ, B. E. (Boris Evseevich), 1908 -1974 (American Institute of Biological Sciences, 1961)

A monograph of the British marine annelids - M'Intosh, William Carmichael, 1838 -1931 (The Ray society, 1922)

Monograph of the Palaeontographical Society - Palaeontographical Society (Great Britain) (Printed for the Palaeontographical Society, 1875)

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

A monograph of the pheasants - Beebe, William, 1877 -1962 (Published under the auspices of the New York Zoological Society by Witherby & Co, 1921)

A monograph of the recent Cephalopoda based on the collections in the British Museum (Natural History) - Robson, G. C. (Guy Coburn), 1888 -1945 (1932)

A monograph on the British fossil reptilia of the Mesozoic formations - Owen, Richard, 1804 -1892 (Printed for the Palaeontographical Society, 1874)

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 der Nematoden - Schneider, Anton, 1831 -1890 (G. Reimer, 1866)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1808)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1803)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1804)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1811)

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)

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)

The morphology and evolutional significance of the pineal body : being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence - Tilney, Frederick, 1875 -1938 (The Wistar Institute of Anatomy and Biology, 1919)

The morphology and evolutional significance of the pineal body; being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence - Tilney, Frederick, 1875 -1938 (The Wistar Institute of Anatomy and Biology, 1919)

Mrs. Loudon's Entertaining naturalist, being popular descriptors, tales, and anecdotes of more than five hundred animals - Dallas, W. S. (William Sweetland), 1824 -1890 (Bell & Daldy, 1867)

Musée Vrolik. Catalogue de la collection d'anatomie humaine, comparée et pathologique de M.M. Ger. et W. Vrolik ... - Vrolik, W. (Willem), 1801 -1863 (Impr. de W. J. de Roever Kröber, 1865)

Museum ichthyologicum, sistens piscium indigenorum & quorumdam exoticorum - Gronovius, Laurentius Theodorus, 1730 -1777 (Theodorum Haak, 1754)

Museum ichthyologicum, sistens piscium indigenorum & quorumdam exoticorum - Gronovius, Laurentius Theodorus, 1730 -1777 (Theodorum Haak, 1756)

Museum Leskeanum : regnum animale quod ordine systematico - Leske, Nathanael Gottfried, 1751 -1786 (Sumptibus haeredum I.G. Mülleri, 1789)

Museum naturalium Academiae upsaliensis cujus partem primam [-XXXIII, ultimam] - Thunberg, Carl Peter, 1743 -1828 (Typis Edmannianis, 1787)

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)

Museum Richterianum : continens fossilia animalia, vegetabilia mar - Richter, Johann Christophe, 1689 -1751 (excudi curavit C. Fritsch, 1743)

Museum S:ae R:ae M:tis Ludovicae Ulricae reginae in quo animalia rariora, exotica imprimis insecta et conchilia describuntur et determinantur prodromi instar editum - Linné, Carl von, 1707 -1778 (Salvius, 1764)

Museum s:æ r:æ m:tis Ludovicæ Ulricæ reginæ svecorum, gothorum, vandalorumque &c. &c. &c. In quo animalia rariora, exotica, imprimis insecta & conchilia describuntur & determinantur prodromi instar editum - Linné, Carl von, 1707 -1778 (Laur. Salvius, 1764)

Museum S[euci]ae R[egin]ae M[ajes]tis Ludovicae Ulricae reginae Svecorum ... : in quo animalia rariora, exotica, imprimis insecta & conchilia describuntur & determinantur - Linné, Carl von, 1707 -1778 (literis & impensis direct. Laur. Salvii, 1764)

The Myxosporidia, or Psorosperms of fishes, and the epidemics produced by them - Gurley, R. R. (Govt. print. off, 1894)

Narrative of a journey to the shores of the polar sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (J. Murray, 1823)

Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (John Murray, 1823)

Narrative of a second voyage in search of a north-west passage and of a residence in the Arctic regions during the years 1829, 1830, 1831, 1832, 1833 - Ross, James Clark, Sir, 1800 -1862 (Baudry's European Library ... sold by Amytot [and 4 others], 1835)

Narrative of a second voyage in search of a North-West Passage : and of a residence in the Arctic regions during the years 1829, 1830, 1831, 1832, 1833 - Ross, James Clark, Sir, 1800 -1862 (A.W. Webster, 1835)

Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 - Franklin, John, Sir, 1786 -1847 (J. Murray, 1823)

Narrative of a second voyage in search of a north-west passage, and of a residence in the Arctic regions during the years 1829, 1830, 1831, 1832, 1833 - Ross, James Clark, Sir, 1800 -1862 (A.W. Webster, 1835)

Narrative of the Arctic land expedition to the mouth of the Great Fish River, and along the shores of the Arctic Ocean, in the years 1833, 1834, and 1835 - Back, George, 1796 -1878 (J. Murray, 1836)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle between the years 1826 and 1836 : describing their examination of the southern shores of South America and the Beagle's circumnavigation of the globe : in three volumes - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's Ships Adventure and Beagle between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (Henry Colburn, 1839)

Narrative of the surveying voyages of His Majesty's ships Adventure and Beagle, between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle's circumnavigation of the globe - Darwin, Charles, 1809 -1882 (H. Colburn, 1839)

Narrative of the voyage of H. M. S. Samarang, during the years 1843-46; employed surveying the islands of the Eastern archipelago; accompanied by a brief vocabulary of the principal languages... - Belcher, Edward, Sir, 1799 -1877 (Reeve, Benham, and Reeve, 1848)

Narrative of a voyage to the Polar Sea during 1875-6 in H.M. ships ' Alert' and 'Discovery' - Nares, George S. Sir (George Strong), 1831 -1915 (S. Low, Marston, Searle & Rivington, 1878)

Narrative of a voyage to the Polar Sea during 1875-6 in H.M. ships 'Alert' and 'Discovery' - Nares, George S. Sir (George Strong), 1831 -1915 (S. Low, Marston, Searle, & Rivington, 1878)

Narrative of a voyage to the Polar Sea during 1875-76 in H.M. ships 'Alert' and 'Discovery' - Nares, George S. Sir (George Strong), 1831 -1915 (S. Low, Marston, Searle, & Rivington, 1878)

Die Natur - Müller, Karl, 1818 -1899 (G. Schwetschke, 1852)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1879)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1891)