Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1903)

Memorie della Reale Accademia di Scienze, Lettere ed Arti di Modena - Reale Accademia di Scienze Lettere ed Arti di Modena. (1833)

Memorie di matematica e di fisica della Societ`a italiana delle Scienze - Società Italiana delle Scienze. (Società Italiana delle Scienze, 1820)

Mennesket, dets oprindelse, liv og bestemmelse, beteragtet fra et naturhistorisk standpunkt - Geijerstam, Karl Johan af, 1860 -1899 (Strand & co, 1896)

Menniskan, hennes uppkomst hennes lif och hennes bestämmelse ur naturhistorisk synpunkt betraktade - Geijerstam, Karl Johan af, 1860 -1899 (P. A. Lindberg & co, 1896)

Meyers Konversations-Lexikon : eine Encyklopädie des allgemeinen Wissens - Meyer, Hermann Julius, 1826 -1909 (1885)

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

The microanalysis of powdered vegetable drugs - Schneider, Albert, 1863 -1928 (Blakiston, 1921)

The microanalysis of powdered vegetable drugs - Schneider, Albert, 1863 -1928 (P. Blakiston's son & co, 1921)

Mikrochemie der pflanze - Molisch, Hans, 1856 -1937 (G. Fischer, 1923)

Mikrographie des Holzes der auf Java vorkommenden Baumarten, im Auftrage des Kolonial-Ministeriums, unter Leitung von J.W. Moll, bearb. von H.H. Janssonius, im Anschlusz an "Additamenta ad cognitionem florae arboreae Javanicae, auctoribus H.C. Koorders et Th. Valeton" - Koorders, Sijfert Hendrik, 1863 -1919 (E.J. Brill, 1906)

Mikrographie des Holzes der auf Java vorkommenden Baumarten, im Auftrage des Kolonial-Ministeriums - Koorders, Sijfert Hendrik, 1863 -1919 (E. J. Brill, 1918)

Mitigating the effects of exotic pests on trade and agriculture. proceedings of a workshop held at Campbell Agricultural Center, Homestead, Florida, June 16-18, 1999. Part A, the Caribbean - Tropical; Subtropical Agriculture Research Program (U.S.) (T-STAR, 1999)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1973)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 2003)

The modern horse doctor : containing practical observations on the causes, nature, and treatment of disease and lameness in horses : embracing the most recent and approved methods, according to an enlightened system of veterinary therapeutics, for the preservation and restoration of health - Dadd, George H., 1813 -1868 (Published by John P. Jewett and Company, 1854)

The modern horse doctor : containing practical observations on the causes, nature, and treatment of disease and lameness in horses : embracing the most recent and approved methods, according to an enlightened system of veterinary therapeutics, for the preservation and restoration of health - Dadd, George H., 1813 -1868 (J.P. Jewett, 1854)

The modern horse doctor. Treating on disease and lameness in horses - Dadd, George H., 1813 -1868 (O. Judd company, 1883)

The modern horse doctor : treating on disease and lameness in horses - Dadd, George H., 1813 -1868 (O. Judd, 1886)

Monthly letter - United States. Bureau of Entomology. (1930)

Monthly letter of the Bureau of Entomology - United States. Bureau of Entomology. (The Bureau, 1930)

Monthly Magazine or British Register (of Politics, Literature and the Belles Lettres) (1809)

Morgan expeditions, 1870-'71 ... : on the Devonian trilobites and mollusks of Ereré, province of Pará, Brazil - Lyceum of Natural History (New York, N.Y.) (Salem Press, 1875)

Morgan expeditions, 1870-71 ... on the Devonian trilobites and mollusks of Ereré, province of Pará, Brazil - Hartt, Charles Frederick, 1840 -1878 (s.n.], 1875)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 1993)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 1997)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 2000)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 2005)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 2007)

Moscosoa : contribuciones científicas del Jardín Botánico Nacional "Dr. Rafael M. Moscoso" - Jardín Botánico Nacional "Dr. Rafael M. Moscoso." (El Jardín, 2011)

Le Muséum national de Rio-de-Janeiro et son influence sur les sciences naturelles au Brésil - Netto, Ladisláo, 1838 -1894 (C. Delagrave, 1889)

Musei Petiveriani centuria prima-[decima] rariora naturae; continens: viz. animalia, fossilia, plantas, ex variis mundi plagis advecta, ordine digesta, et nominibus propriis signata - Petiver, James, 1663 or 1664 -1718 (S. Smith & B. Walford, 1695)

Museum botanicum Lugduno-Batavum, sive, Stirpium exoticarum novarum vel minus cognitarum ex vivis aut siccis brevis expositio et descriptio - Blume, C. L. (Carl Ludwig), 1796 -1862 (E.J. Brill, 1849)

Museum museorum, oder, Vollständige Schau Bühne aller Materialien und Specereyen : nebst deren natürlichen Beschreibung, Election, Nutzen und Gebrauch, aus andern Material-Kunst-und Naturalien-Kammern, oost-und-west-indischen Reiss-Beschreibungen ... : wie auch selbst-eigenen Erfahrung, zum Vorschub der studirenden Jugend, Materialisten ... u.s.w. also verfasset, und mit etlich hundert sauberen Kupfferstücken unter Augen geleget - Valentini, Michael Bernhard, 1657 -1729 (Verlegt von Johann David Zunners Sel. Erben, und Johann Adam Jungen, 1714)

Museum Wormianum, seu, Historia rerum rariorum : tam naturalium, quam artificialium, tam domesticarum, quam exoticarum, quae Hafniae Danorum in aedibus authoris servantur - Elzevir, Daniel, 1626 -1680 (Apud Iohannem Elsevirium, 1655)

Museum Wormianum; seu, Historia rerum rariorum, tam naturalium, quam artificialium, tam domesticarum, quam exoticarum, quae Hafniae Danorum in a aedibus authoris servantur - Worm, Ole, 1588 -1654 (ex officina Elseviriorum, 1655)

Mvsaevm Franc. CalceolarI ivn. veronensis - Ceruti, Benedetto, 1620 (Apud Angelum Tamum, 1622)

My shrubs - Phillpotts, Eden, 1862 -1960 (John Lane, 1915)

My shrubs - Phillpotts, Eden, 1862 -1960 (J. Lane, 1915)

National list of scientific plant names - United States. Soil Conservation Service. (U.S. Dept. of Agriculture, Soil Conservation Service, 1982)

National list of scientific plant names - United States. Soil Conservation Service. (Nebr.], 1971)

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

The natural history of plants - Baillon, H. (Henri), 1827 -1895 (L. Reeve & co, 1871)

The natural history of plants - Baillon, H. (Henri), 1827 -1895 (L. Reeve & co, 1880)

A natural history of the ducks - Fuertes, Louis Agassiz, 1874 -1927 (Houghton Mifflin Company, 1922)

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, 1882)

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, 1891)

Le Naturaliste : journal des échanges et des nouvelles - Deyrolle, Émile, 1838 -1917 (Bureaux à Paris, 1901)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1917)

Nature's hygiene : a systematic manual of natural hygiene : containing also a detailed account of the chemistry and hygiene of eucalyptus, pine and camphor forests, and some industries connected therewith - Royal College of Physicians of Edinburgh. (Bailliere, Tindall and Cox, 1894)

Die Naturgeschichte des Cajus Plinius Secundus : ins Deutsche übersetzt und mit Anmerkungen versehen - Wittstein, Georg Christian, 1810 -1887 (Gressner & Schramm, 1881)

Das natürliche Pflanzensystem : ein Versuch, die gegenseitigen Verwandtschaften der Pflanzen aufzufinden ... : mit Berücksichtigung der arzneilichen und überhaupt anwendbaren Gewächse, nebst einer historischen Einleitung ... - Heynhold, Gustav. (In der Arnoldischen Buchh, 1840)

Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet - Engler, Adolf, 1844 -1930 (W. Engelmann, 1887)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1890)

Natuurlyke historie : of, Uitvoerige beschryving der dieren, planten, en mineraalen - Linné, Carl von, 1707 -1778 (By F. Houttuyn [and others], 1774)

Natuurlyke historie : of, Uitvoerige beschryving der dieren, planten, en mineraalen - Linné, Carl von, 1707 -1778 (By F. Houttuyn [and others], 1780)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2008)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2009)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2010)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2011)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2012)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2017)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2019)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2020)

Neue allgemeine deutsche Garten- und Blumenzeitung - Mettler, Rudolph. (G. Heubel's Buch- und Kunsthandlung, 1847)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1900)

A new and accurate system of natural history - Brookes, R. (Richard), active 1721 -1763 (Printed for J. Newbery, 1763)

The new dispensatory ... : the whole interspersed with practical cautions and observations : intended as a correction, and improvement of Quincy - Lewis, William, 1708 -1781 (Printed for J. Nourse, opposite Catharine Street in the Strand, 1753)

The New England Farmer : containing essays, original and selected, relating to agriculture and domestic economy, with engravings and the prices of country produce - Fesseden, Thomas Green, 1771 -1837 (Published by William Nichols, 1823)

New genera and species of Myrtaceae-feeding Phylinae from Australia, and the description of a new species of Restiophylus (Insecta, Heteroptera, Miridae) - Schuh, Randall T. (American Museum of Natural History, 2018)

New genus and species of nectar-feeding bat from the Atlantic Forest of southeastern Brazil (Chiroptera, Phyllostomidae, Glossophaginae) - Peracchi, Adriano Lúcio. (American Museum of Natural History, 2012)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1914)

New plant introductions - United States. Office of Foreign Seed; Plant Introduction. (G.P.O, 1915)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1914)

New Plant introductions - United States. Office of foreign seed; plant introduction. (1915)

Newsletter - Hawaiian Botanical Society - Hawaiian Botanical Society. (The Society, 1991)

Nomenclator botanicus :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (Sumptibus J.G. Cottae, 1821)

Nomenclator botanicus; enumerans ordine alphabetico nomina atque synonyma tum generica tum specifica et a Linnaeo et recentrioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (sumtibus I.G. Cottae, 1821)

Nomenclator botanicus hortensis : oder, alphabetische und synonymische aufzählung der in den gärten Europa's cultivirten gewächse, nebst angabe ihres autors, ihres vaterlandes, ihrer dauer und cultur - Heynhold, Gustav, 1800 -approximately 1860 (Arnoldischen Buchhandlung, 1846)

Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (Sumptibus T. Fischeri, 1873)

Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1840)

Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1841)