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)

A manual of land and fresh water vertebrate animals of the United States (exclusive of birds) - Pratt, Henry Sherring, 1859 - (P. Blakiston's Son & Co., inc, 1935)

A manual of land and fresh water vertebrate animals of the United States (exclusive of birds) - Pratt, Henry Sherring, 1859 - (Blakiston's, 1923)

A manual of the common invertebrate animals, exclusive of insects - Pratt, Henry Sherring, 1859 - (A.C. McClurg & Co, 1923)

A manual of the vertebrate animals of the northern United States : including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri river, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A. C. McClurg, 1916)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A. C. McClurg and Company, 1899)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg, 1910)

A manual of the vertebrate animals of the northern United States: including the district north and east of the Ozark Mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River inclusive of marine species - Jordan, David Starr, 1851 -1931 (A. C. McClurg, 1899)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian hills, north of the southern boundary of Virginia, and east of the Missouri river, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg and company, 1888)

A manual of the vertebrate animals of the northern United States, including the district north and east of the Ozark mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (McClurg, 1888)

A manual of the vertebrate animals of the northern United States : including the district north and east of the Ozark Mountains, south of the Laurentian Hills, north of the southern boundary of Virginia, and east of the Missouri River, inclusive of marine species - Jordan, David Starr, 1851 -1931 (A.C. McClurg, 1888)

Manual of the vertebrate animals of the northern U.S. ... inclusive of the marine species - Jordan, David Starr, 1851 -1931 (McClurg, 1894)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & Company, 1884)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species. By David Starr Jordan ... - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & company, 1880)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg, 1884)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg, 1880)

Manual of the vertebrates of the northern United States, including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & company, 1880)

Manual of the vertebrates of the northern United States including the district east of the Mississippi River, and north of North Carolina and Tennessee, exclusive of marine species - Jordan, David Starr, 1851 -1931 (Jansen, McClurg & Co, 1876)

Manuel de mammalogie, ou histoire naturelle des mammiferes - Lesson, R. P. (René Primevère), 1794 -1849 (J. B. Bailliere, 1827)

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

Maryland naturalist - Natural History Society of Maryland (The Society, 1956)

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

Mémoires de la Société zoologique de France - Société zoologique de France. (Au Siege de la Société, 1898)

Medical and physical researches, or, Original memoirs in medicine, surgery, physiology, geology, zoology, and comparative anatomy - Harlan, Richard, 1796 -1843 (printed by L.R. Bailey, 1835)

The Australian Museum Memoir (Australian Museum, 1929)

The Australian Museum Memoir (Australian Museum, 1930)

Mémoire sur les formes cérébrales propres aux édentés vivants et fossiles : précédé de remarques sur quelques points de la structure anatomique de ces animaux et sur leur classification - Gervais, Paul, 1816 -1879 (s.n, 1869)

Mémoires de l'Académie impériale des sciences de St.-Pétersbourg. 7e série - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (L'Académie, 1873)

Mémoires de la Société des sciences naturelles de Saône-et-Loire - Société des sciences naturelles de Saône-et-Loire. (Société des sciences naturelles de Saône-et-Loire, 1884)

Mémoires du Muséum national d'histoire naturelle. Série A, Zoologie - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 1974)

Mémoires du Muséum national d'histoire naturelle - Muséum national d'histoire naturelle (France) (Éd. du Muséum, 2000)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1881)

Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass - Harvard University. Museum of Comparative Zoology. (The Museum, 1913)

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)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1929)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1966)

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1982)

Memorie della Reale accademia delle scienze di Torino - Accademia delle scienze di Torino (Stamperia reale, 1849)

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, 2012)

Merveilles de la nature : l'homme et les animaux, description populaire des races humaines et des règne animal - Brehm, Alfred Edmund, 1829 -1884 (J.-B. Baillière et Fils, 1878)

Mimikry und verwandte erscheinungen - Jacobi, Arnold, 1870 -1948 (F. Vieweg, 1913)

The minds and manners of wild animals; a book of personal observations - Hornaday, William T. (William Temple), 1854 -1937 (C. Scribner's Sons, 1922)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1956)

Miscellaneous publication - University of Kansas, Museum of Natural History - University of Kansas. Museum of Natural History. (University of Kansas, 1970)

Mission scientifique au Mexique et dans l'Amérique Centrale : ouvrage publié par ordre de S.M. l'Empereur et par les soins du Ministre de l'instruction publique - Fournier, Eugène, 1834 -1884 (Imprimerie impériale, 1870)

Mitteilungen der Botanischen Staatssammlung München - Botanische Staatssammlung München. (H. Merxmüller, 1966)

Mitteilungen der Geographischen Gesellschaft und des Naturhistorischen Museums in Lübeck - Geographische Gesellschaft in Lübeck (Lübcke & Nöhring, 1891)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1860)

Monatsberichte der Königlichen Preussische Akademie des Wissenschaften zu Berlin - Königlich Preussische Akademie der Wissenschaften zu Berlin (Königliche Akademie der Wissenschaften, 1862)

Monograph of the naiades of Pennsylvania ... - Ortmann, Arnold E. 1863 -1927 (Board of Trustees of the Carnegie Institute, 1919)

Monography of the family Unionidæ, or, Naiades of Lamarck (fresh water bivalve shells) of North America ... - Conrad, T. A. (Timothy Abbott), 1803 -1877 (J. Dobson, 1836)

Monography of the family Unionidæ, or, Naiades of Lamarck (fresh water bivalve shells) of North America ... - Conrad, T. A. (Timothy Abbott), 1803 -1877 (J. Dobson, 1838)

Montana amphibian and reptile status assessment, literature review, and conservation plan - United States. Bureau of Land Management. (Montana Natural Heritage Program, 2009)

Morphological extremes–two new snakes of the genus Atractus from northwestern South America (Colubridae, Dipsadinae) - Myers, Charles W. (American Museum of Natural History, 2006)

The mountain - Jackson, Robert Montgomery Smith, 1815 -1865 (J. B. Lippincott & Co, 1860)

Museum bulletin - New York State Museum. (University of the State of New York, 1909)

Museum bulletin - New York State Museum. (University of the State of New York, 1911)

The museum of natural history; being a popular account of the structure, habits, and classification of the various departments of the animal kingdom: quadrupeds, birds, reptiles, fishes, shells, and insects, including the insects destructive to agriculture - Holder, Joseph B. (Joseph Bassett), 1824 -1888 (J. S. Virtue, 1877)

Museum paper - Geological Survey of Alabama. Museum. (1910)

Museum paper - Alabama Museum of Natural History. (Alabama Museum of Natural History, 1921)

Name that animal; a guide to the identification of the common land and fresh-water animals of the United States, with special reference to the area east of the Rockies - Driver, Ernest Charles, 1899 - (1950)

Natural areas inventory, Gates County, North Carolina - North Carolina. Coastal Energy Impact Program. (North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, 1982)

Natural history. A manual of zoölogy for schools, colleges, and the general reader - Tenney, Sanborn, 1827 -1877 (Scribner, Armstrong & co, 1872)

Natural history. A manual of zoölogy for schools, colleges, and the general reader - Tenney, Sanborn, 1827 -1877 (Scribner & co, 1867)

The natural history of fishes, amphibians, & reptiles, or monocardian animals - Goode, G. Brown (George Brown), 1851 -1896 (Longman, Orme, Brown, Green & Longmans, and John Taylor, 1839)

A natural history of new and rare ferns : containing species and varieties, none of which are included in any of the eight volumes of "Ferns, British and exotic", amongst which are the new hymenophyllums and Trichomanes - Lowe, E. J. (Edward Joseph), 1825 -1900 (Bell & Dadly, 1871)

A natural history of new and rare ferns : containing species and varieties, none of which are included in any of the eight volumes of "Ferns, British and exotic," amongst which are the new hymenophyllums and trichomanes - Lowe, E. J. (Edward Joseph), 1825 -1900 (Groombridge, 1865)

A natural history of new and rare ferns: containing species and varieties, none of which are included in any of the eight volumes of "Ferns, British and exotic," amongst which are the new Hymenophyllums and Trichomanes. With col. illus. and wood-cuts - Lowe, E. J. (Edward Joseph), 1825 -1900 (Groombridge, 1862)

Natural history of New York (D. Appleton, 1842)

Natural history of New York - Hall, James, 1811 -1898 (D. Appleton & co. and Wiley & Putnam, 1842)