London Naturalist - London Natural History Society. (London Natural History Society, 1998)

London Naturalist - London Natural History Society. (London Natural History Society, 1999)

London Naturalist - London Natural History Society. (London Natural History Society, 2000)

London Naturalist - London Natural History Society. (London Natural History Society, 2001)

London Naturalist - London Natural History Society. (London Natural History Society, 2002)

London Naturalist - London Natural History Society. (London Natural History Society, 2003)

London Naturalist - London Natural History Society. (London Natural History Society, 2004)

London Naturalist - London Natural History Society. (London Natural History Society, 2005)

London Naturalist - London Natural History Society. (London Natural History Society, 2006)

London Naturalist - London Natural History Society. (London Natural History Society, 2007)

London Naturalist - London Natural History Society. (London Natural History Society, 2008)

London Naturalist - London Natural History Society. (London Natural History Society, 2009)

London Naturalist - London Natural History Society. (London Natural History Society, 2010)

London Naturalist - London Natural History Society. (London Natural History Society, 2011)

London Naturalist - London Natural History Society. (London Natural History Society, 2012)

London Naturalist - London Natural History Society. (London Natural History Society, 2014)

London Naturalist - London Natural History Society. (London Natural History Society, 2015)

Long-term evaluation of the effects of Bacillus thuringiensis kurstaki, gypsy moth nucleopolyhedrosis virus product Gypchek, and Entomophaga maimaiga on nontarget organisms in mixed broadleaf-pine forests in the central Appalachians - Butler, Linda, 1943 - (U.S. Dept. of Agriculture, Forest Service, FHTET, 2004)

MAB Information System: Biosphere Reserves, Compilation 4, October 1986: Supplement January 1988 - IUCN Conservation Monitoring Centre. (UNESCO, IUCN Conservation Monitoring Centre, 1988)

Madras Journal of Literature and Science - Madras Literary Society. (Madras Literary Society, 1840)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1999)

Magasin de zoologie, d'anatomie comparée et de palaeontologie (Arthus Bertrand, 1839)

Magasin de zoologie, d'anatomie comparée et de palaeontologie (Arthus Bertrand, 1841)

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, 1830)

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 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, 1837)

The Magazine of natural history / conducted by Edward Charlesworth - Charlesworth, Edward. (s.n.], 1838)

The Magazine of natural history / conducted by Edward Charlesworth - Charlesworth, Edward. (s.n.], 1839)

MAGNT research report - Museums; Art Galleries of the Northern Territory (Museums and Art Galleries of the Northern Territory, 1998)

MAGNT research report - Museums; Art Galleries of the Northern Territory (Museums and Art Galleries of the Northern Territory, 1999)

Magyarország természettudományi és mathematikai könyvészete, 1472-1875 - Magyar Természettudományi Társulat. (Athenaeum R.T. Könyvnyomdája, 1878)

Malacologia - Institute of Malacology. (Institute of Malacology], 1969)

Malacologia - Institute of Malacology. (Institute of Malacology], 2007)

Malacologia - Institute of Malacology. (Institute of Malacology], 2010)

Malacologia - Institute of Malacology. (Institute of Malacology], 2015)

The Malay Archipelago: the land of the orang-utan, and the bird of paradise - Wallace, Alfred Russel, 1823 -1913 (Harper & Brothers, 1869)

Der Malayische Archipel. Die Heimath des Orang-Utan und des Paradiesvogels. Reiseerlebnisse und Studien über Land und Leute - Wallace, Alfred Russel, 1823 -1913 (Westermann, 1869)

Malpighia :rassegna mensuale di botanica - Penzig, O. (Ottone), 1856 -1929 (g. Capra & co, 1913)

Mammal study - Nihon Honyurui Gakkai (Mammalogical Society of Japan, 1996)

Mammals of southeast Alberta - Smith, Hugh C. (Alberta Culture, Historical Resources Division, 1986)

The mammals of the Caucasus; a history of the evolution of the fauna. (Mlekopitayushchie Kavkaza; istoriya formirovaniya fauny) - Vereshchagin, N. K. (Israel Program for Scientific Translations [available from the U.S. Dept. of Commerce, Clearinghouse for Federal Scientific and Technical Information, Springfield, Va.], 1967)

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, 1923)

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 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 dangerous insects likely to be introduced in the United States through importations - United States. Bureau of Entomology. (Govt. print. off, 1917)

A manual of dangerous insects likely to be introduced in the United States through importations - United States. Bureau of Entomology. (Govt. print. off, 1918)

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

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)

Manual of the New Zealand Coleoptera - Broun, Thomas. 1838 -1919 (1880)

Manual of the New Zealand Coleoptera - New Zealand Institute. (Printed at the Office of James Hughes, Lambton Quay, 1880)

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

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

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

Marvels of insect life ; a popular account of structure and habit - Step, Edward, 1855 -1931 (R. M. McBride, 1916)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1983)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 1992)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2010)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2012)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2015)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2017)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2019)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2020)

Maryland naturalist - Natural History Society of Maryland (The Society, 1952)

Maryland naturalist - Natural History Society of Maryland (The Society, 1993)

Materials for the study of variation : treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan, 1894)

Materials for the study of variation treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan and co, 1894)

Materials for the study of variation treated with especial regard to discontinuity in the origin of species - Bateson, William, 1861 -1926 (Macmillan, 1894)

Mathematische und naturwissenschaftliche Berichte aus Ungarn - Magyar Tudományos Akadémia. (R. Friedländer & Sohn [etc.], 1900)

May flies and midges of New York. Third report on aquatic insects. A study conducted at the entomologic field station, Ithaca, N. Y - Needham, James G. (James George), 1868 -1957 (New York State Education Department, 1905)

May flies and midges of New York. Third report on aquatic insects. A study conducted at the entomologic field station, Ithaca, N.Y - Needham, James G. (James George), 1868 -1957 (New York State Education Dept, 1905)

MCZ newsletter - Harvard University. Museum of Comparative Zoology. (The Museum, 1971)

A mechanically operated insect trap - Schoenleber, L.G. (1969)

The mechanism of evolution in leptinotarsa - Tower, William Lawrence, 1872 - (Carnegie Institution of Washington, 1918)

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], 1912)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1913)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1921)

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

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1897)

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1901)

Mediterranean naturalist (1893)

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

Memoir - Cornell University. Agricultural Experiment Station. (1919)