Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1898)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1906)

Memorie - Classe di scienze fisiche, matematiche e naturali - Accademia nazionale dei Lincei. Classe di scienze fisiche, matematiche e naturali. (Accademia Nazionale dei Lincei, 1880)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1865)

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

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)

Mines Department (Geological Survey) of Victoria Rock Register - Museums Victoria (Geological Survey Victoria, 1947)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1996)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 1997)

Missouri Botanical Garden bulletin - Missouri Botanical Garden. (Missouri Botanical Garden], 2003)

Mittheilungen aus der Zoologischen Station zu Neapal - Stazione zoologica di Napoli. (Wilhelm Engelmann, 1908)

The Mollusca and the Brachiopoda - Dall, William Healey, 1845 -1927 (Harvard College, Museum of Comparative Zoology], 1908)

Mollusca–II. (Trochomorphidae–Janellidae) - Gude, Gerard Kalshoven, 1858 - (Taylor and Francis, 1914)

Mollusca of the southwestern states. I-XI ... - Pilsbry, Henry Augustus, 1862 -1957 (1905)

Mollusca: The Southern Synthesis [Fauna of Australia. Vol. 5] - Australian Biological Resources Study (CSIRO Publishing, 1998)

Molluscan Research - Malacological Society of Australia (Malacological Society of Australia, 1994)

Molluscan Research - Malacological Society of Australia (Malacological Society of Australia, 2000)

I molluschi dei terreni terziarii del Piemonte e della Liguria - Bellardi, Luigi, 1818 -1889 (Stamperia Reale, 1897)

Mollusques - Pelseneer, Paul, 1863 -1945 (Rueff, 1897)

Mollusques de la France et des régions voisines - Vayssière, A. (Albert Jean Baptiste Marie), 1854 -1942 (O. Doin et fils, 1913)

Los moluscos de la República de Panamá - Zetek, James, 1886 - (Imp. nacional, 1918)

A monograph of the British nudibranchiate Mollusca - Alder, Joshua, 1792 -1867 (Printed for the Ray society, 1910)

A monograph of the British nudibranchiate Mollusca : with figures of all the species - Ray Society. (Printed for the Ray Society, 1845)

A monograph of the fossil Estheriae - Jones, T. Rupert (Thomas Rupert), 1819 -1911 (The Palæontographical society, 1862)

Monographs in systematic botany from the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden, 1984)

Monographs of the United States Geological Survey - Geological Survey (U.S.) (Govt. Print. Off, 1892)

Montana outdoors - Montana. Dept. of Fish; Game. (Montana Dept. of Fish, Wildlife and Parks, 2017)

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

Moore and Simon's seed buyers guide and wholesale price list : market gardners [sic], florists and other large buyers - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore & Simon, 1903)

Moore and Simon's seed buyers guide and wholesale price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore & Simon, 1904)

Moore's rural New-Yorker - Moore, D. D. T. (D.D.T. Moore, 1850)

Moore Seed Company's seed buyers guide for 1915 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Moore Seed Company, 1915)

Moths - Bell, Thomas Reid Davys, 1863 -1948 (Taylor and Francis; [etc., etc.], 1896)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 1981)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 2003)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 2005)

Muelleria: An Australian Journal of Botany - Royal Botanic Gardens (Vic.) (National Herbarium of Victoria, 2017)

Multiscale guidance and tools for implementing a landscape approach to resource management in the Bureau of Land Management - Geological Survey (U.S.) (U.S. Department of the Interior, U.S. Geological Survey, 2017)

Muscologia Germanica : oder Beschreibung der deutschen Laubmoose. Im erweiterten Umfange nach dem jetzigen Stande der Wissenschaft, nebst Erörterung der Standörter und ihrer Entdecker, der Synonyme seit Hoffmann und Roth, mit erläuternden Anmerkungen - Hübener, Johann Wilhelm Peter, 1807 -1847 (F. Hofmeister, 1833)

Muscologia recentiorum seu analysis, historia et descriptio methodica omnium muscorum frondosorum hucusque cognitorum ad normam Hedwigii - Bridel-Brideri, Samuel Elisée de, 1761 -1828 (1798)

Museum Leskeanum ... - Karsten, Dietrich Ludwig Gustav, 1768 -1810 (1789)

Museum Normanianum, or A catalogue of the invertebrata of Europe, and the Arctic and North Atlantic oceans, which are contained in the collection of the Rev. Canon A. M. Norman, ... . I.-XII. Printed for private distribution - Norman, Alfred Merle, 1831 -1918 (Morton, printer, 1886)

Museum Victoria science reports - Museum Victoria. (Museum Victoria, 2006)

My garden favorites. August 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maurice Fuld], 1919)

My garden favorites. May 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maurice Fuld], 1919)

My garden favorites. September 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maurice Fuld], 1919)

My garden favorites. 1919 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Maurice Fuld], 1919)

The mycophile - North American Mycological Association. (North American Mycological Association, 2005)

The mycophile - North American Mycological Association. (North American Mycological Association, 2016)

The mycophile - North American Mycological Association. (North American Mycological Association, 2020)

Mycotaxon (Mycotaxon, 2020)

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, 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, 1994)

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, 1996)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1997)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1998)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 1999)

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

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2001)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2002)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2005)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2006)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2007)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2008)

Myrmecia : news bulletin of the Australian Entomological Society Inc - Australian Entomological Society. (The Society, 2009)

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

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 the expedition of an American squadron to the China Seas and Japan : performed in the years 1852, 1853, and 1854, under the command of Commodore M.C. Perry, United States Navy, by order of the Government of the United States - Jones, George, 1800 -1870 (Beverley Tucker, printer, 1856)

National Museum, Victoria, Register Zoological Collection - Museums Victoria (National Museum of Victoria, 1968)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2003)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2004)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2013)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2015)

Natur Cymru : a review of wildlife in Wales - Natur Cymru, (Natur Cymru, 2016)

Natural history - American Museum of Natural History (American Museum of Natural History, 1994)

Natural history - American Museum of Natural History (American Museum of Natural History, 1919)

Natural history : journal of the American Museum of Natural History - American Museum of Natural History (American Museum of Natural History, 1919)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1843)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1895)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1904)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1907)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1989)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1991)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2007)

A naturalist's wanderings in the Eastern Archipelago, a narrative of travel and exploration from 1878 to 1883 - Forbes, Henry O. (Henry Ogg), 1851 -1932 (S. Low, Marston, Searle & Rivington, 1885)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1884)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1903)

Nature - Lockyer, Norman, Sir, 1836 -1920 (Macmillan Journals Ltd., etc, 1922)

Nature East Africa - East Africa Natural History Society. (East Africa Natural History Society, 2004)

Nature in Avon - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 2000)

Nature net - Nature Kenya. (East Africa Natural History Society, 2011)

Naturgeschichte der Vögel Mitteleuropas - Naumann, Johann Andreas, 1747 -1826 (F. E. Köhler, 1905)

Naturhistorisk tidsskrift - Schiødte, J. C. (Jørgen Matthias Christian), 1815 -1884 (C.A. Reitzel, 1861)