Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1879)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1890)

Manual of conchology, structural and systematic : with illustrations of the species - Tryon, George W., (George Washington), 1838 -1888 (Published by the Author, Academy of Natural Sciences, 1891)

Manual of conchology, structural and systematic : with illustrations of the species Second series Pulmonata - Hyatt, Alpheus, 1838 -1902 (Published by the Author, 1885)

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

A manual of exotic ferns & Selaginella comprising descriptions of over one thousand species and varieties, and upwards of six hundred synonyms; also notes on their history, culture, & mangement - Sandford, E. (H. J. Infield, 1882)

A manual of gardening for western and southern India - Riddell, R. (Higginbotham and co, 1884)

A manual of natural history, for the use of travellers : being a description of the families of the animal and vegetable kingdoms: with remarks 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)

A manual of the elements of natural history - Blumenbach, Johann Friedrich, 1752 -1840 (printed for W. Simpkin & R. Marshall, 1825)

A manual of the Infusoria : including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign, and an account of the organization and the affinities of the sponges - Saville-Kent, William 1845 -1908 (D. Bogue, 1880)

A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges - Saville-Kent, William 1845 -1908 (David Bogue, 1881)

A manual of the Nílagiri district in the Madras Presidency - Grigg, Henry Bidewell. (Printed by E. Keys at the Government Press, 1880)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1912)

A manual of zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1902)

A manual of zoology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1870)

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

A manual of zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan & co., ltd, 1899)

A manual of zoology for the use of students : with a general introduction on the principles of zoology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood, 1887)

Manuale ittiologico del Mediterraneo : ossia sinossi metodica delle varie specie di pesci riscontrate nel Mediterraneo ed in particolare nei mari di Sicilia - Doderlein, Pietro. (Tip. del Giornale di Sicilia, 1879)

Manuel de botanique, a l'usage des amateurs et des voyageurs : contenant les principes de botanique, l'éxplication du systême de Linné, un catalogue des différens végétaux étrangers, les moyens de transporter les arbres & les semences, la maniére de former un herbier, &c. : avec huit planches - Lebreton, F., approximately 1790 (Chez Prault, imprimeur du roi, quai des Augustins, à l'Immortalité, 1787)

Manuel de paléontologie - Hoernes, Rudolf, 1850 -1912 (Savy, 1886)

Manuel entomologique. Genera des coléoptères d'Europe - Jacquelin Du Val, Pierre Nicolas Camille, 1828 -1862 (A. Deyrolle, 1857)

Marine algae of New Brunswick - Hay, G. U. (George Upham), 1843 -1912 (s.n, 1887)

The marine algae of New England - United States. Bureau of Fisheries. (Govt. Print. Off, 1891)

Marine algae of New England and adjacent coast - Farlow, W. G. (William Gilson), 1844 -1919 (Govt. Print. Off, 1881)

Marine algae of the New Jersey coast and adjacent waters of Staten Island - Martindale, Isaac C., 1842 -1893 (s.n.], 1889)

The marine botanist; an introduction to the study of algology, containing descriptions of the commonest British sea-weeds, and the best method of preserving them, with figures of the most remarkable species - Gifford, Isabella (Darton, 1848)

The marine botanist : an introduction to the study of the British sea-weeds ; containing descriptions of all the species, and the best method of preserving them - Gifford, Isabella (R. Folthorp, 1853)

Marine botany and sea-side objects : embracing every feature of interest connected with this delightful sea-side recreation : and illustrated with many charming specimens (Ward, Lock & Co)

Marine shells of South Africa: a catalogue of all the known species - Sowerby, G. B. (George Brettingham), 1843 -1921 (Sowerby, 1892)

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

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

Maryland naturalist - Natural History Society of Maryland (The Society, 1987)

The materia medica of the Hindus - Dutt, Udoy Chand. (Adi-Ayurveda Machine Press, 1922)

Materica medica of India and their therapeutics - Katrak, Nanabhai Navrosji. (Printed at the "Times of India" Press, 1903)

Mature larvae and nesting biologies of bees currently assigned to the Osmiini (Apoidea, Megachilidae) - Praz, Christophe J. (American Museum of Natural History, 2016)

May's catalogue of northern grown seeds, plants, bulbs and fruits : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (L.L. May & Co, 1910)

M.E. Blochii ... Systema ichthyologiae iconibus CX illustratum - Schneider, Johann Gottlob, 1750 -1822 (Sumtibus auctoris impressum et Bibliopolio Sanderiano commissum, 1801)

Mémoires de la Société impériale des naturalistes de Moscou - Moskovskoe obshchestvo liubitelei prirody. (Impr. de l'Universitmpale, 1817)

Mémoires de la Société linnéenne du Calvados - Société Linneenne du Calvados. (Chez Chalopin Fils, 1825)

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1891)

Mémoires sur la famille des fougères - Fée, Antoine Laurent Apollinaire, 1789 -1874 (Impr. de Ve. Berger-Levrault, 1866)

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], 1904)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1910)

Meddelanden af Societas pro Fauna et Flora Fennica - Societas pro Fauna et Flora Fennica ([Societas pro Fauna et Flora Fennica], 1918)

Mededeelingen uit 's Lands Plantentuin - 's Lands Plantentuin. (G. Kolff & Co, 1890)

Medicinal plants. Being descriptions with original figures of the principal plants employed in medicine and an account of the characters, properties, and uses of their parts and products of medicinal value - Trimen, Henry, 1843 -1896 (J. & A. Churchill, 1880)

Medicinal uses of plants by Indian tribes of Nevada Part I (pages 1-61) - Archer, W. Andrew (William Andrew), 1894 -1973 (Division of Plant Exploration and Introduction, Bureau of Plant Industry, U.S. Dept. of Agriculture, 1941)

Medicinal uses of plants by Indian tribes of Nevada - Archer, W. Andrew (William Andrew), 1894 -1973 (Plant Industry Station, 1957)

Medizinische Zoologie oder getreue Darstellung und Beschreibung der Thiere, die in der Arzneimittellehre in Betracht kommen - Ratzeburg, Julius Theodor Christian, 1801 -1871 (Hirschwald, 1829)

Medizinische Zoologie oder getreue Darstellung und Beschreibung der Thiere, die in der Arzneimittellehre in Betracht kommen - Ratzeburg, Julius Theodor Christian, 1801 -1871 (Hirschwald, 1833)

Meehan's monthly : a magazine of horticulture, botany, and kindred subjects (T. Meehan & Sons, 1891)

Mélanges biologiques tirés du Bulletin de l'Académie impériale des sciences de St. Pétersbourg - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Eggers et comp, 1873)

The Australian Museum Memoir (Australian Museum, 1899)

The Australian Museum Memoir (Australian Museum, 1900)

Memoir of the late William Wright, M.D. : With extracts from his correspondence, and a selection of his papers on medical and botanical subjects - Wright, William, 1735 -1819 (William Blackwood, 1828)

Mémoires - Société entomologique de Belgique. (The Society, 1913)

Mémoires couronnés et mémoires des savants étrangers / publiés par l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1882)

Memoires de l'Academie des Sciences, Agriculture, Arts et Belles-Lettres (Aix) - Académie des sciences, agriculture, arts & belles-lettres dAix (1844)

Mémoires de l'Académie des sciences, belles-lettres & arts de Lyon Classe des sciences - Académie des sciences, belles-lettres et arts de Lyon. (J.B. Baillière, 1881)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 6e série Seconde partie Sciences naturelles - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) ([Académie impériale des sciences de St.-Pétersbourg], 1855)

Mémoires de l'Académie Impériale des Sciences, Littérature et Beaux-Arts de Turin : Sciences Physiques et Mathématiques - Reale accademia delle scienze di Torino (Imprimerie de l'Académie Impériale des Sciences, 1804)

Mémoires de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1848)

Mémoires de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1849)

Mémoires de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique - Académie royale des sciences, des lettres et des beaux-arts de Belgique. (1855)

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Memoires de la Société de physique et d'histoire naturelle de Genève - Société de physique et d'histoire naturelle de Genève. (Georg [etc.], 1828)

Memoires de la Société de physique et d'histoire naturelle de Genève - Société de physique et d'histoire naturelle de Genève. (Georg [etc.], 1868)

Memoires de la Société de physique et d'histoire naturelle de Genève - Société de physique et d'histoire naturelle de Genève. (Georg [etc.], 1890)

Mémoires de la Société géologique de France - Société géologique de France. (F.-G. Levrault, 1838)

Mémoires de la Société géologique de France - Société géologique de France. (F.-G. Levrault, 1877)

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Mémoires de la Société linnéenne du Calvados - Société Linneenne du Calvados. (Chalopin fils, imprimeur de La Société, 1825)

Mémoires du docteur Antommarchi, ou Les derniers momens de Napoléon - Antommarchi, Francesco, 1780 -1838 (Barrois l'aîné, 1825)

Mémoires du Muséum national d'histoire naturelle Série A Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1961)

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 - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1997)

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

Mémoires présentés à l'Académie impériale des Sciences de St. Petersbourg par divers Savans et dans ses assemblées - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (1855)

Mémoires présentés à l'Institut Égyptien - Institut égyptien. (1911)

Memoirs and memoranda, chiefly botanical - Prain, D. (David), 1857 -1944 (Baptist mission press, 1894)

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Memoirs of Museum Victoria - Museum Victoria. (: Museum Victoria, 2022)

Memoirs of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (The Academy, 1861)

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

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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, 1988)

Memoirs of the California Academy of Sciences - California Academy of Sciences (The Academy, 1995)

Memoirs of the Carnegie Museum - Carnegie Institute. Board of Trustees. (Published by the authority of the Board of Trustees of the Carnegie Institute, 1904)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1895)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1904)

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Memoirs of the Queensland Museum - Queensland Museum. (Queensland Museum, 1998)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1889)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1890)

Memoirs of the Torrey Botanical Club - Torrey Botanical Club. (Published for the Club by the Seeman Printery, 1902)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Memorias de la Real Academia de Ciencias Exactas, Fisicas y Naturales de Madrid - Real Academia de Ciencias Exactas Físicas y Naturales de Madrid. (Impr. Aguado, 1897)

Memorias de la Real Academia de Ciencias y Artes de Barcelona - Real Academia de Ciencias y Artes de Barcelona. (1895)

Memorias de la Real Academia de Ciencias y Artes de Barcelona - Real Academia de Ciencias y Artes de Barcelona. (1920)

Memorias de la Real Sociedad Española de Historia Natural - Sociedad Española de Historia Natural. (s.n.], 1903)