Manual of the families and genera of North American Diptera - Williston, Samuel W. (Samuel Wendell), 1851 -1918 (J.T. Hathaway, 1896)

Manual of the families and genera of North American diptera - Williston, Samuel W. (Samuel Wendell), 1851 -1918 (Hathaway, 1896)

Manual of tropical medicine - Chalmers, Albert John, 1870 -1920 (Baillière, Tindall and Cox, 1919)

A manual on guidelines for the control of arboviral encephalitides in Canada - Canada Biting Fly Centre. (Research Branch, Agriculture Canada, 1990)

Marquesan insects (The Museum, 1935)

Maryland entomologist - Maryland Entomological Society. (Maryland Entomological Society, 2014)

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)

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)

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], 1911)

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

Memoir - Cornell University. Agricultural Experiment Station. (1921)

Mémoires - Société entomologique de Belgique. (The Society, 1906)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Editions du Museum, 1940)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1956)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1963)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1959)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1978)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1983)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1984)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1990)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1976)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1983)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1988)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1994)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 2005)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 2008)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 2013)

Memoirs of the California Academy of Sciences - California Academy of Sciences (The Academy, 1992)

Memoirs of the California Academy of Sciences - California Academy of Sciences (The Academy, 1990)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1994)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 2004)

Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 2007)

Memorial of life and entomologic work of Joseph Albert Lintner ... state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorial of life and entomologic work of Joseph Albert Lintner, state entomologist, 1874-98 - Felt, Ephraim Porter, 1868 -1943 (University of the State of New York, 1899)

Memorias de la Real Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (s.n.], 1905)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1960)

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

Memorie della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano - Museo civico di storia naturale di Milano. (La Società, 1918)

Middle Missouri River planning project - Montana. Ecological Services Division. (Montana Department of Fish and Game, Ecological Services Division, 1977)

The Mitigation Symposium : a National Workshop on Mitigating Losses of Fish and Wildlife Habitats, July 16-20, 1979, Colorado State University, Fort Collins, Colorado - Swanson, Gustav Adolph, 1910 - (Rocky Mountain Forest and Range Experiment Station, Forest Service, 1979)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1951)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1964)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1989)

Mitteilungen der Münchner Entomologischen Gesellschaft - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1992)

Modular development phase monitoring report 11, January 1982 - December 1982 : year-end report - Gulf Oil Corporation. (Rio Blanco Oil Shale Company, 1983)

Monitoring of black fly (Diptera : Simuliidae) abatement program on the Athabasca River - 1983 - Byrtus, Gary (Pesticide Chemicals Branch, Pollution Control Division, Environmental Protection Services, Alberta Environment, 1986)

Monthly letter - United States. Bureau of Entomology. (1925)

Monthly letter - United States. Bureau of Entomology. (1926)

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

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

Mosquitoes; family Culicidae - Gutsevich, A V. (Israel Program for Scientific Translations [available from the National Technical Information Service, Springfield, Va.], 1974)

The mosquitoes of North and Central America and the West Indies - Dyar, Harrison G. (Harrison Gray), 1866 -1929 (The Carnegie Institution of Washington, 1912)

The mosquitoes of North and Central America and the West Indies - Dyar, Harrison G. (Harrison Gray), 1866 -1929 (Carnegie Institution of Washington, 1915)

Les moustiques; mœurs et moyens de destruction - Hegh, Émile, 1877 - (Imprimerie industrielle and financière, 1921)

Museum bulletin - New York State Museum. (University of the State of New York, 1908)

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)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1987)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1988)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1991)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 1997)

Nachrichtenblatt der Bayerischen Entomologen - Münchner Entomologische Gesellschaft. (Münchner Entomologische Gesellschaft, 2001)

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1912)

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

Naturae novitates : Bibliographie neuer Erscheinungen aller Länder auf dem Gebiete der Naturgeschichte und der exacten Wissenschaften (R. Friedländer & Sohn, 1916)

The Natural history of Enewetak Atoll - Devaney, Dennis M. (U.S. Dept. of Energy, Office of Energy Research, Office of Health and Environmental Research, Ecological Research Division, 1987)

The natural history of Juan Fernandez and Easter Island - Skottsberg, Carl, 1880 -1963 (Almqvist & Wiksells Boktryckeri, 1920)

The Natural history of Juan Fernandez and Easter Island - Skottsberg, Carl, 1880 -1963 (Almqvist & Wiksells Boktryckeri, 1956)

Natural history of the Bistcho Lake Region, Northwest Alberta - Provincial Museum of Alberta. Natural History Section. (Natural History Section, Provincial Museum of Alberta, 1988)

The natural history of the farm : a guide to the practical study of the sources of our living in wild nature - Needham, James G. (James George), 1868 -1957 (Comstock Pub. Co, 1914)

The natural history of the farm; a guide to the practical study of the sources of our living in wild nature - Needham, James G. (James George), 1868 -1957 (The Comstock Publishing Company, 1913)

The natural history of the farm; a guide to the practical study of the sources of our living in wild nature - Needham, James G. (James George), 1868 -1957 (The Comstock Publishing Company, 1916)

The natural history of the farm; a guide to the practical study of the sources of our living in wild nature - Needham, James G. (James George), 1868 -1957 (Comstock Publishing Co, 1913)

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

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1955)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1967)

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

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1980)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1982)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 1985)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2001)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2005)

The naturalist - West-Riding Consolidated Naturalists' Society (Simpkin, Marshall, 2009)

A naturalist on lake Victoria, with an account of sleeping sickness and the tse-tse fly - Carpenter, G. D. Hale (Geoffrey Douglas Hale), 1882 -1953 (T.F. Unwin ltd, 1920)

A naturalist on Lake Victoria : with an account of sleeping sickness and the tse-tse fly - Carpenter, G. D. Hale (Geoffrey Douglas Hale), 1882 -1953 (E. P. Dutton, 1920)

Naturwissenschaftliche Wochenschrift - Deutsche Gesellschaft für Volkstümliche Naturkunde in Berlin. (G. Fischer [etc.], 1914)

The Nautilus - American Malacologists, Inc. (American Malacologists, inc., etc, 2018)

A new species-group of the blackfly genus Simulium from western South America (Simuliidae, Diptera, Insecta) - Coscarón, Sixto (American Museum of Natural History, 1970)

New York State Museum. 1, Twenty-eighth Report of the Director of the division of science and State Museum (University of the State of New York, 1935)

New York State Museum. 1, Twenty-ninth Report of the Director of the division of science and State Museum (University of the State of New York, 1936)

News letter - United States. Bureau of Entomology; Plant Quarantine. (Bureau of Entomology and Plant Quarantine, 1934)

Norfolk natterjack - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists Society, 2010)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1909)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1918)

North Platte River area designated (noxious) weed treatment program : environmental assessment record - United States. Bureau of Land Management. (Wyoming Department of Agriculture, 1978)

The North Queensland Naturalist : the journal and magazine of the North Queensland Naturalist Club - North Queensland Naturalists' Club. (The Club, 1980)

Notes on animal parasites and parasitism. Lecture outlines of a course in parasitology with special reference to forms of economic importance - Riley, William A. (William Albert), 1876 -1963 (1912)

Notes on South American black flies of the tribe Prosimuliini (Simuliinae, Simuliidae, Diptera) - Coscarón, Sixto (American Museum of Natural History, 1973)

Notulae entomologicae - Helsingin Hyönteistieteellinen Yhdistys. ([Societas Entomologica Helsingforsiensis], 1921)

Nyt magazin for naturvidenskaberne - Physiographiske forening i Christiania. (Johan Dahl, 1913)

Occasional paper - Entomological Society of British Columbia (The Society, 1994)

Occasional papers from the Museum of Victoria. Vol. 1-6 (1984-1993) - Museum of Victoria (Council of the Museum of Victoria, 1992)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1915)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1986)

Ohio Biological Survey notes - Ohio Biological Survey. (Ohio Biological Survey, 2019)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1974)

L'Oiseau et la Revue francaise d'ornithologie - Société ornithologique de France. (Société ornithologique de France, 1975)

One hundred first annual report of the New York State Museum : Charles C. Adams, director - Adams, Charles C. (Charles Christopher), 1873 -1955 (University of the State of New York, 1939)

One hundred sixth annual report of the New York State Museum and Science service (University of the State of New York, State Education Dept, 1944)