Magazin der Entomologie - Ahrens, August, 1779 -1841 (Joh. Chr. Hendel, 1818)

Magazin des Thierreichs - Leitner, Johann, (Wolfgang Walther, 1793)

Magasin Encyclopédique : ou journal des sciences, des lettres et des arts (1801)

Magazin für die Liebhaber der Entomologie - Fuessli, Johann Caspar, 1743 -1786 (Bey dem Herausgeber und bey Heinrich Steiner, 1778)

Magazin für Insektenkunde - Illiger, Johann Karl Wilhelm, 1775 -1813 (Karl Reichard, 1802)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1829)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1831)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1833)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1836)

Magazine of zoology and botany - Westwood, J. O. (John Obadiah), 1805 -1893 (1837)

A magyarországi cladocerak magánrajza - Magyar Természettudományi Társulat. (Kiadja a Kir. Magyar Természettudományi Társulat, 1888)

Maison rustique du XIXe siècle ... Rédigé et professé par une réunion d'agronomes et de praticiens appartenant aux sociétés agricoles de France sous la direction du Dr. Alexandre Bixio - Alexandre, Jacques, 1808 -1865 (Librarie agricole, 1844)

Die Mallophagen mit besonderer Berücksichtigung der von Dr. Meyer gesammelten Arten - Taschenberg, Otto, 1854 -1922 (E. Blochmann, 1882)

Mantissa insectorum, exhibens species nuper in Etruria - Rossi, Pietro, fl 1790 - (Ex typ. Polloni, 1792)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1897)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1904)

Manual of animal biology - Baitsell, George Alfred, 1885 -1971 (The Macmillan company, 1932)

A manual of British Coleoptera, or beetles : containing a brief description of all the species of beetles hitherto ascertained to inhabit Great Britain and Ireland together wth a notice of their chief localities, times and places of appearances, etc - Stephens, James Francis, 1792 -1853 (Longman, Orme, Brown, Green, and Longmans, 1839)

A manual of comparative anatomy - Blumenbach, Johann Friedrich, 1752 -1840 (Printed for W. Simpkin and R. Marshall, 1827)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1879)

A manual of elementary zoology - Borradaile, L. A. (Lancelot Alexander), 1872 -1945 (H. Frowde, Hodder & Stoughton, 1920)

A Manual of entomology - Shuckard, William Edward, 1802 -1868 (E. Churchton, 1836)

Manual of entomology : with special reference to economic entomology - Maxwell-Lefroy, H. (Harold), 1877 -1925 (Longmans, Green & Co, 1923)

A manual of natural history, for the use of travellers : being a description of the families of the animal and vegetable kingdoms: with remarks on the practical study of geology and meteorology. To which are appended directions for collecting and preserving - Adams, Arthur, 1820 -1878 (J. Van Voorst, 1854)

A manual of natural history, for the use of travellers : being a description of the families of the animal and vegetable kindgoms: with remarkable on the practical study of geology and meteorology. To which are appended directions for collecting and preserving - Adams, Arthur, 1820 -1878 (J. Van Voorst, 1854)

A manual of palaeontology for the use of students with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1872)

A manual of palæontology for the use of students : with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1872)

A manual of palæontology, for the use of students; with a general introduction on the principles of palæontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1879)

A manual of the elements of natural history - Blumenbach, Johann Friedrich, 1752 -1840 (printed for W. Simpkin & R. Marshall, 1825)

A manual of the Infusoria : including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign, and an account of the organization and the affinities of the sponges - Saville-Kent, William 1845 -1908 (D. Bogue, 1880)

A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges - Saville-Kent, William 1845 -1908 (David Bogue, 1881)

Manual of the natural history, geology, and physics of Greenland, and the neighboring regions : prepared for the use of the Arctic Expedition of 1875, under the direction of the Arctic Committee of the Royal Society, for the use of the expedition ; published by authority of the Lords Commissioners of the Admiralty - Great Britain. Admiralty. (H.M. Stationery Off., printed by G.E. Eyre and W. Spottiswoode, 1875)

Manual of the natural history, geology and physics of Greenland and the neighbouring regions / prepared for the use of the Arctic expedition of 1875, under the direction of the Arctic Committee of the Royal Society and edited by T. Rupert Jones. Together with Instructions suggested by the Arctic Committee of the Royal Society for the use of the expedition / published by authority of the Lords Commissioners of the Admiralty - Great Britain. Admiralty. (Printed for H.M.S.O, 1875)

Manual of tropical medicine - Chalmers, Albert John, 1870 -1920 (Baillière, Tindall and Cox, 1919)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1912)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1902)

A manual of zoology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1870)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1909)

A manual of zoology for the use of students ... , with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1873)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (D. Appleton, 1877)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (William Blackwood, 1878)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood, 1887)

Manuel d'histoire naturelle - Blumenbach, Johann Friedrich, 1752 -1840 (Chez Collignon, imprimeur-libraire, 1803)

Manuel d'histoire naturelle médicale - Royal College of Physicians of Edinburgh. (G. Bailliere, 1871)

Manuel de l'histoire naturelle des crustacés, contenant leur description et leurs moeurs; avec figures dessinées d'après nature - Bosc, L. A. G. (Louis Augustin Guillaume), 1759 -1828 (Libraire Encyclopédique de Roret, 1830)

Manuel de l'histoire naturelle des crustacés contenant leur description et leurs moeurs, avec figures dessinées d'aprè s-nature - Bosc, L. A. G. (Louis Augustin Guillaume), 1759 -1828 (s.n.], 1830)

Manuel de la faune de Belgique - Lameere, Auguste, 1864 -1942 (H. Lamertin, 1900)

Manuel de la faune de Belgique - Lameere, Auguste, 1864 -1942 (Lamertin, 1895)

Manuel de paléontologie - Hoernes, Rudolf, 1850 -1912 (Savy, 1886)

Mark anniversary volume ; to Edward Laurens Mark, Hersey professor of anatomy and director of the zoölogical laboratory at Harvard university, in celebration of twenty-five years of successful work for the advancement of zoölogy, from his former students, 1877-1902 - Parker, George Howard, 1864 -1955 (H. Holt and company, 1903)

Mark anniversary volume; to Edward Laurens Mark, Hersey Professor of Anatomy and Director of the Zoölogical Laboratory at Harvard University, in celebration of twenty-five years of successful work for the advancement of zoölogy - Parker, George Howard, 1864 -1955 (H. Holt and Company, 1903)

Marquesan insects (The Museum, 1935)

Martini Lister e Societate Regia Londini Historiae animalium Angliae tres tractatus : unus de araneis : alter de cochleis tum terrestribus tum fluviatilibus : tertius de cochleis marinis : quibus adjectus est quartus de lapidibus ejusdem insulae ad cochlearum quandam imaginem figuratis : memoriae & rationi - Lister, Martin, 1638? -1712 (apud Joh. Martyn Regiae Societatis typographum, 1678)

Martini Lister ... Historiæ animalium Angliæ, tres tractatus. Unus de araneis. Alter de cochleis tum terrestribus, tum fluviatilibus. Tertius de cochleis marinis. Quibus adjectus est quartus de lapidibus ejusdem insulæ ad cochlearum quandam imaginem figuratis - Lister, Martin, 1638? -1712 (apud Joh. Martyn Regiæ societatis typographum, 1678)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1898)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1883)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1901)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1903)

Mémoire aptérologique - Hermann, Jean Frédéric, 1768 -1793 (1804)

Mémoires de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Impr. de l'Universitmpale, 1812)

Mémoires de la Société linnéenne du Calvados - Société Linneenne du Calvados. (Chez Chalopin Fils, 1825)

Métamorphoses mœurs et instincts des insectes (insectes, myriapodes, arachnides, crustacés) - Blanchard, Emile, 1819 -1900 (G. Baillière, 1868)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica (Societas, 1876)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1918)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1895)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1896)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1899)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1918)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1898)

Meddelelser om Grønland - Denmark. Kommissionen for ledelsen af de geologiske og geografiske undersøgelser i Grønland. (C. A. Reitzels Forlag, 1921)

Medical zoology, and mineralogy : or, illustrations and descriptions of the animals and minerals employed in medicine, and of the preparations derived from them: including also an account of animal and mineral poisons: with figures coloured from nature - Royal College of Physicians of Edinburgh. (John Churchill, 1838)

Medical zoology, and mineralogy; or, Illustrations and descriptions of the animals and minerals employed in medicine, and of the preparations derived from them: including also an account of animal and mineral poisons - Stephenson, John, 1790 -1864 (J. Wilson, 1832)

Meletemata entomologica - Kolenati, Friedrich A. (Friedrich August), 1813 -1864 (Imperialis Academiae Scientiarum, 1846)

Memórias do Instituto Oswaldo Cruz - Instituto Oswaldo Cruz (1914)