Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1964)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1893)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1922)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1861)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1884)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1909)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1919)

Memorie della Reale Accademia delle Scienze dell'Istituto di Bologna, Classe di Scienze Fisiche - R. Accademia delle scienze dell'Istituto di Bologna. (1923)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1896)

Memories of the months. Fourth series - Maxwell, Herbert, Sir, 1845 -1937 (E. Arnold, 1907)

Merveilles de la nature : les insectes, les myriopodes, les arachnides et les crustaces - Brehm, Alfred Edmund, 1829 -1884 (J.-B. Baillière et Fils, 49 rue Hautefeuille, près du boulevard Saint-Germain, 1882)

Les métamorphoses des insectes - Girard, Maurice, 1822 -1886 (Librairie Hachette et Cie, 1874)

Les métamorphoses des insectes - Girard, Maurice, 1822 -1886 (L. Hachette, 1870)

Les métamorphoses des insectes - Girard, Maurice, 1822 -1886 (Librairie de L. Hachette et Cie, Boulevard Saint-Germain, No 77, 1866)

Métamorphoses moeurs et instincts des insectes (insectes, myriapodes, arachnides, crustacés) - Blanchard, Emile, 1819 -1900 (G. Baillier, 1877)

The Metaspermae of the Minnesota Valley. A list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota Valley : a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 (Geological and Natural History Survey of Minnesota, 1892)

The Metaspermae of the Minnesota Valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota River - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

The Metaspermae of the Minnesota valley; a list of the higher seed-producing plants indigenous to the drainage-basin of the Minnesota river - MacMillan, Conway, 1867 -1929 ([Harrison & Smith, State Printers], 1892)

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

The micrographic dictionary : a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John van Voorst, 1860)

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 micrographic dictionary; a guide to the examination and investigation of the structure and nature of microscopic objects - Griffith, J. W. (John William) (John Van Voorst, 1856)

Midden-Sumatra. Reizen en onderzoekingen der Sumatra-expeditie, uitgerust door het Aardrijkskundig genootschap, 1877-1879, beschreven door de leden der expeditie, onder toezicht van Prof. P.J. Veth - Veth, Pieter Johannes, 1814 -1895 (E.J. Brill, 1881)

Midden-Sumatra. Reizen en onderzoekingen der Sumatra-expeditie, uitgerust door het Aardrijkskundig genootschap, 1877-1879, beschreven door de leden der expeditie, onder toezicht van Prof. P.J. Veth - Veth, Pieter Johannes, 1814 -1895 (E. J. Brill, 1881)

Midland naturalist - Birmingham Natural History; Microscopical Society (Birmingham, England) (Hardwicke and Bogue, 1880)

Miscellanea entomologica. Memoria prima-[quarta] - Costa, Achille, 1823 -1898 (Tip. della Reale accademia delle scienze fisiche e matematiche, 1888)

[Miscellaneous papers on injurious insects - Fitch, Asa, 1809 -1879 (1845)

Mitteilungen aus dem Naturhistorischen Museum in Hamburg - Naturhistorisches Museum in Hamburg. (Lütcke & Wulff, 1899)

Mitteilungen der Deutschen dendrologischen gesellschaft - Deutsche Dendrologische Gesellschaft. (Thyrow (Kr. Teltow), [etc.], 1918)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1911)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1973)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1862)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1900)

Mitteilungen der Schweizerischen Entomologischen Gesellschaft = Bulletin de la Société entomologique suisse - Schweizerische Naturforschende Gesellschaft. (Schweizerische Entomologische Gesellschaft, 1907)

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

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)

Möllers Deutsche Gärtner-Zeitung - Möller, Ludwig. ([Ludwig Möller, 1886)

Möllers Deutsche Gärtner-Zeitung - Möller, Ludwig. ([Ludwig Möller, 1890)

Modern horse management - Timmis, Reginald S. (Reginald Symonds), 1884 -1968 (Cassell, 1914)

Modern horse management - Timmis, Reginald S. (Reginald Symonds), 1884 -1968 (Cassell and company, ltd, 1915)

Modern horse management - Timmis, Reginald S. (Reginald Symonds), 1884 -1968 (Cassell and Co, 1915)

Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (1859)

Monographie de la famille des Lycopodiacées - Spring, Anton Friedrich, 1814 -1872 (M. Hayez en commission chez C. Muquardt, 1842)

Monographs of the Diptera of North America - Osten-Sacken, C. R. (Carl Robert), 1828 -1906 (Smithsonian Institution, 1862)

Monographs of the Diptera of North America - Osten-Sacken, C. R. (Carl Robert), 1828 -1906 (The Institution, 1862)

Monthly letter - United States. Bureau of Entomology. (1931)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1805)

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

Mosquitoes, gnats, craneflies, midges and flies of the northern states - Knobel, Edward, 1839 -1908 (B. Whidden, 1897)

Musaeum Tradescantianum, or, A collection of rarities preserved at South-Lambeth neer London - Brooke, Nathaniel (Printed by John Grismond, and are to be sold by Nathanael Brooke, 1656)

Musée entomologique illustré : histoire naturelle iconographique des insectes : publiée par une réunion d'entomologistes français et étrangers - Bisson-Cottard (Firm) (Rothschild, 1878)

Musée entomologique illustré : histoire naturelle iconographique des insectes : publiée par une réunion d'entomologistes français et étrangers - Bisson-Cottard (Firm) (Rothschild, 1876)

Museum bulletin - New York State Museum. (University of the State of New York, 1913)

Museum N.G. Leskeanum. Pars entomologica ; ad systema entomologiae Cl. Fabricii ordinata - Leske, Nathanael Gottfried, 1751 -1786 (In Bibliopolio I.G. Mülleriano, 1788)

My garden in spring - Bowles, E. A. (Edward Augustus), 1865 -1954 (Dodge Pub. Co, 1914)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1989)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1990)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1991)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1992)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1993)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1995)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2000)

Narrative of an expedition of exploration in north-western Australia - Basedow, Herbert, 1881 -1933 (W.K. Thomas & Co., Printers, 1918)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1882)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1914)

The natural control of the fall webworm (Hyphantria cunea Drury) in Canada : together with an account of its several parasites - Canada. Department of Agriculture. (F.A. Acland, King's Printer, 1922)

Natural history - Bernard, Henry Meyners, 1853 -1909 (D. Appleton and company, 1897)

Natural history - Lydekker, Richard, 1849 -1915 (Hutchinson, 1897)

The natural history of aquatic insects - Miall, L. C. (Louis Compton), 1842 -1921 (Macmillan, 1895)

The natural history of aquatic insects - Miall, L. C. (Louis Compton), 1842 -1921 (Macmillan and Co., limited, 1912)

Natural history of Hawaii, being an account of the Hawaiian people, the geology and geography of the islands, and the native and introduced plants and animals of the group - Bryan, William Alanson, 1875 -1942 ([Printed for the author by] the Hawaiian gazette co., ltd, 1915)

The natural history of plants : their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and Company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & son, limited, 1902)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Oliver ... with the assistance of Marian Busk ... and Mary F. Ewart ... With about 2000 original woodcut illustrations and sixteen plates in colours - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt and company, 1895)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun ... Tr. and ed. by F.W. Eliver ... with the assistance of Marian Busk ... and Mary F. Ewart - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants, their forms, growth reproduction, and distribution; from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (Blackie & Son, 1895)

The natural history of plants; their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1894)

The natural history of plants, their forms, growth, reproduction, and distribution - Kerner von Marilaun, Anton, 1831 -1898 (Blackie, 1902)

The natural history of plants, their forms, growth, reproduction, and distribution: from the German of Anton Kerner von Marilaun - Kerner von Marilaun, Anton, 1831 -1898 (H. Holt, 1895)

The natural history of Sokotra and Abdel-Kuri : being the report upon the results of the Conjoint Expedition to these Islands in 1898-9, by Mr. W.R. Ogilvie-Grant ... and Dr. H.O. Forbes ... - Forbes, Henry O. (Henry Ogg), 1851 -1932 (The Free Public Museums, Henry Young and Sons, 1903)

The Natural History of the Scarborough district - Rimington, F. C. (Scarborough Field Naturalists' Society, 1956)

Natural science (Macmillan & Co, 1897)

A natural system of botany, or, A systematic view of the organization, natural affinities, and geographical distribution, of the whole vegetable kingdom : together with the uses of the most important species in medicine, the arts, and rural or domestic economy - Lindley, John, 1799 -1865 (Longman, Rees, Orme, Brown, Green, and Longman, 1836)

A natural system of botany; or, A systematic view of the organisation, natural affinities, and geographical distribution of the whole vegetable kingdom - Lindley, John, 1799 -1865 (Longman, Rees, Orme, Brown, Green, and Longman, 1836)

La naturaleza; periódico científico del Museo Nacional de Historia Natural y de la Sociedad Mexicana de Historia Natural - Sociedad Mexicana de Historia Natural. (Impr. de I. Escalante, 1874)

The naturalisation of animals & plants in New Zealand - Thomson, George Malcolm 1848 -1933 (The University Press, 1922)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1896)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1900)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1923)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1925)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1927)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1928)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1936)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1968)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1984)

El Naturalista argentino : revista de historia natural - Arribálzaga, Enrique Lynch, (Enrique Lynch Arribálzaga [&] Eduard Ladislao Holmberg, 1878)