Journal of the Washington Academy of Sciences - Washington Academy of Sciences (Washington, D.C.) (Washington Academy of Sciences], 1943)

Journal of the Washington Academy of Sciences - Washington Academy of Sciences (Washington, D.C.) (Washington Academy of Sciences], 1950)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1889)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1892)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1893)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1895)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1896)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1897)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1905)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1906)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1913)

Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1919)

Der Kapitaine Portlock's und Dixon's Reise um die Welt besonders nach der Nordwestlichen Küste von Amerika wä hrend der Jahre 1785 bis 1788 in den Schiffen King George und Queen Charlotte - Forster, Johann Reinhold, 1729 -1798 (C.F. Voss, 1790)

Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology, an outline of the structure and classification of birds, and Field ornithology, a manual of collecting, preparing, and preserving birds - Coues, Elliott, 1842 -1899 (D. Estes and Company, 1890)

A key to the snakes of the United States - Perkins, C. B. (Clarence Basil), 1888 - (Zoological Society of San Diego, 1949)

A key to the snakes of the United States - Perkins, C. B. (Clarence Basil), 1888 - (1940)

Lake Bonneville - Gilbert, Grove Karl, 1843 -1918 (United States Geological Survey, 1890)

The land and sea mammals of Middle America and the West Indies - Elliot, Daniel Giraud, 1835 -1915 (Field Columbian Museum, 1904)

Landwirthschaftliches Centralblatt für Deutschland (K. Wiegandt, 1857)

Laurence M. Huey Field Notes, 1916-1954 - Huey, Laurence M. (Laurence Markham), 1892 -1963 (San Diego Natural History Museum Research Library, 1916)

Leaflets of botanical observation and criticism - Greene, Edward Lee, 1843 -1915 (1903)

The Lepidopterist - Boston Entomological Club. (Boston Entomological Club, 1918)

Madera y bosques - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2012)

Madera y bosques - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2015)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1978)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1983)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1995)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2011)

Malacologia - Institute of Malacology. (Institute of Malacology], 1988)

Malacologia - Institute of Malacology. (Institute of Malacology], 1995)

Mammals of America - Anthony, H. E. (Harold Elmer), 1890 -1970 (The University Society, inc, 1917)

Mammals of New Mexico - Bailey, Vernon, 1864 -1942 ([U.S. Govt. Print. Off.], 1931)

Mammals of the Mexican boundary of the United States. A descriptive catalogue of the species of mammals occurring in that region; with a general summary of the natural history, and a list of trees - Mearns, Edgar Alexander, 1856 -1916 (Govt. print. off, 1907)

Management of amphibians, reptiles, and small mammals in North America : proceedings of the symposium, July 19-21, 1988, Flagstaff, Arizona - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1988)

A manual of bacteriology - Bolton, B. Meade (Benjamin Meade), 1857 -1929 (P. Blakiston's Son, 1909)

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 North American birds - Ridgway, Robert, 1850 -1929 (Lippincott, 1887)

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J. B. Lippincott, 1887)

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J.B. Lippincott Co, 1900)

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J. B. Lippincott Company, 1896)

A manual of North American birds - Ridgway, Robert, 1850 -1929 (J.B. Lippincott, 1887)

Manual of the botany (Phænogamia and Pteridophyta) of the Rocky mountain region, from New Mexico to the British boundary - Coulter, John Merle, 1851 -1928 (Ivison, Blakeman, Taylor, and Company, 1885)

Manual of the flora of Jackson County, Missouri - Bush, Benjamin Franklin, 1858 -1937 (1902)

Manual of the flora of the northern states and Canada - Britton, Nathaniel Lord, 1859 -1934 (Holt, 1905)

Manual para el rastreo de mamíferos silvestres de México - Aranda, Marcelo (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2012)

Mémoires couronnés et autres mémoires 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. (F. Hayez, 1872)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1966)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1967)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 1971)

Memoirs of the American Entomological Society - American Entomological Society. (American Entomological Society, 2002)

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

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

Memoirs of the San Diego Society of Natural History - San Diego Society of Natural History. (The Society, 1979)

Memoirs of the San Diego Society of Natural History - San Diego Society of Natural History. (The Society, 1981)

Memorias - Academia Nacional de Ciencias Antonio Alzate, Mexico

Memórias do Instituto Butantan - Instituto Butantan (O Instituto, 1946)

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

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1893)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1897)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1900)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1902)

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

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1904)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1909)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1914)

Memorias y revista de la Sociedad Científica "Antonio Alzate." - Sociedad Científica "Antonio Alzate." (Imprenta del Gobierno en el Ex-Arzobispado, 1917)

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)

The Mexican and Central American lizards of the genus Sceloporus - Smith, Hobart M. (Hobart Muir), 1912 -2013 (Field Museum of Natural History, 1939)

Mexicanas plantas nuper a collectoribus expeditionis scientificae allatas :aut longis ab annis in herbario musei parisiensis depositas - Fournier, Eugène, 1834 -1884 (ex Typographeo Reipublicae, 1872)

Mexico, Aztec, Spanish and republican : a historical, geographical, political, statistical and social account of that country from the period of the invasion by the Spaniards to the present time : with a view of the ancient Aztec empire and civilization : a historical sketch of the late war : and notices of New Mexico and California - Mayer, Brantz, 1809 -1879 (S. Drake and Company, 1851)

Mineral withdrawal : Desert National Wildlife Range : final environmental impact statement - U.S. Fish; Wildlife Service. Region 1. (U.S. Department of the Interior, Fish & Wildlife Service, Pacific Region, 1994)

Miscellaneous publication - United States. Department of Agriculture. (U.S. Dept. of Agriculture, 1927)

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, 1969)

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