A Magyar Tud. Akadémia kiadásában megjelent munkáknak és a folyóiratok tartalmának betürendes czímjegyzéke, 1889-1910 - Magyar Tudományos Akadémia. (1911)

Magyarország pók-faunája - Herman, Ottó, 1835 -1914 (Kiadja a Királyi magyar termászettudományi társulat, 1876)

Magyarország pók-faunája - Herman, Ottó, 1835 -1914 (Kiadja a Királyi magyar termászettudományi társulat, 1878)

Magyarország pók-faunája - Herman, Ottó, 1835 -1914 (Kiadja a Királyi magyar termászettudományi társulat, 1879)

Malaysian spiders - Workman, Thomas (T. Workman, 1896)

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, 1923)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1897)

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

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Publishing Company, 1916)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (The Comstock Pub. Co., 1920, 1920)

A manual for the study of insects - Comstock, John Henry, 1849 -1931 (Comstock Pub. Co, 1895)

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

A manual of forestry - Schlich, William, Sir, 1840 -1925 (Bradbury, Agnew, 1907)

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 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 palaeontology for the use of students with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1889)

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 common invertebrate animals, exclusive of insects - Pratt, Henry Sherring, 1859 - (A.C. McClurg & co, 1916)

A manual of the common invertebrate animals, exclusive of insects - Pratt, Henry Sherring, 1859 - (A.C. McClurg & Co, 1923)

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 and Company, 1902)

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

A manual of zoology - Council of Public Instruction of France (H. Renshaw, 1856)

A manual of zoology - Knox, Robert, 1791 -1862 (Renshaw, 1863)

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

Manuale di ornitologia italiana; elenco descrittivo degli uccelli stazionari o di passaggio finora osservati in Italia - Arrigoni degli Oddi, Ettore, 1867 -1942 (U. Hoepli, 1904)

Manuel de l'acclimateur, ou, Choix de plantes recommandées pour l'agriculture, l'industrie et la médecine, et adaptées aux divers climate de l'Europe et des pays tropicaux - Naudin, Charles, 1815 -1899 (Société d'aAcclimatation, 1887)

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

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

The mason-wasps - Fabre, Jean-Henri, 1823 -1915 (McClelland & Stewart, 1919)

The mason-wasps - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead and company, 1919)

The mason-wasps - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead and Company, 1919)

The mason-wasps. Translated by Alexander Teixeira de Mattos - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead, 1919)

A materia medica: Animalia, containing the scientific analysis, natural history and chemical and medical properties and uses of the substances that are the products of beasts, birds, fishes or insects ... - Good, Peter P. (Peter Peyto), 1789 -1875 (The author, 1853)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1892)

Mazedonien : erlebnisse und beobachtungen eines naturforschers im gefolge des deutschen heeres - Doflein, Franz, 1873 -1924 (Gustav Fischer, 1921)

Mémoires de la Société impériale des sciences naturelles de Cherbourg - Société Imperiale des Sciences Naturelles de Cherbourg. (J.B. Baillière et fils, 1870)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1917)

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], 1899)

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

Medizinische Zoologie oder getreue Darstellung und Beschreibung der Thiere, die in der Arzneimittellehre in Betracht kommen - Ratzeburg, Julius Theodor Christian, 1801 -1871 (Hirschwald, 1833)

Mélanges biologiques tirés du Bulletin de l'Académie impériale des sciences de St. Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Eggers et comp, 1861)

The Australian Museum Memoir (Australian Museum, 1889)

The Australian Museum Memoir (Australian Museum, 1896)