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

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

Leaves from the book of nature, containing the principal illustrations in Jardine's Naturalist's library, upon one hundred and seventeen sheets - Lizars, W. H. 1788 -1859 (W.H. Lizars, 1840)

Lebensbilder aus der Tierwelt - Meerwarth, Hermann, 1870 - (Voigtländer, 1912)

Lehrbuch der Naturgeschichte - Perleb, Karl Julius, 1794 -1845 (Friedrich Wagner, 1831)

Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Royal College of Physicians of Edinburgh. (G. Fischer, 1914)

Die Lehre von den Haaren in der gesammten organischen Natur - Eble, Burkard, 1799 -1839 (Heubner, 1831)

Liberia - Stapf, O. (Otto) 1857 -1933 (Hutchinson, 1906)

Life of a Scotch naturalist: Thomas Edward, associate of the Linnaean Society - Smiles, Samuel, 1812 -1904 (Harper & brothers, 1876)

Life of a Scotch naturalist, Thomas Edward, associate of the Linnean Society - Smiles, Samuel, 1812 -1904 (John Murray, 1877)

The life of vertebrates - Young, J. Z. (John Zachary), 1907 -1997 (Oxford University Press, 1962)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2001)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2002)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2004)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2005)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2009)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2010)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2014)

The Lincolnshire naturalist : transactions of the Lincolnshire Naturalists' Union - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 2016)

List of land mammals of New Guinea, Celebes and adjacent islands, 1758-1952 - Laurie, Eleanor Mary Ord. (BM(NH), 1954)

List of North American land mammals in the United States National Museum, 1911 - Miller, Gerrit S. Jr. (Gerrit Smith), 1869 -1956 (Govt. print. off, 1912)

List of North American recent mammals 1923 - Miller, Gerrit S. (Gerrit Smith), 1869 -1956 (Govt. Print. Off, 1924)

A list of the land and sea mammals of North America north of Mexico. Supplement to the synopsis - Elliot, Daniel Giraud, 1835 -1915 (1901)

List of the specimens of Mammalia in the collection of the British museum - Gray, John Edward 1800 -1875 (The Trustees, 1843)

Lista taxonómica de los mamiferos terrestres de México - Ramírez-Pulido, José (Museum of Texas Tech University, 1996)

The London and Edinburgh philosophical magazine and journal of science (Richard and John E. Taylor, 1835)

London Bird Report - London Natural History Society. (2014)

London Naturalist - London Natural History Society. (London Natural History Society, 1965)

London Naturalist - London Natural History Society. (London Natural History Society, 1987)

London Naturalist - London Natural History Society. (London Natural History Society, 1988)

London Naturalist - London Natural History Society. (London Natural History Society, 1995)

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

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

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

Loose field notes and miscellaneous data, Smithsonian Africa Expedition, 1909 - 1910 - Heller, Edmund, 1875 -1939 (1909)

Lotos : Zeitschrift für Naturwissenschaften - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (1854)

Loudon's Natural History. Popular descriptions, tales and anecdotes of more than five hundred animals - Loudon, J. C. (John Claudius), 1783 -1843 (G. Bell and sons, 1889)

Maapallon eläimistö - Suomalainen, E. W. (W. Söderström, 1922)

Magazine of zoology and botany - Westwood, J. O. (John Obadiah), 1805 -1893 (1837)

Magyarország denevéreinek monographiája - Méhely, Lajos, 1862 -1952 or 1953 (V. Hornyky, 1900)

Mammalia - Blanford, W. T. (William Thomas), 1832 -1905 (Taylor and Francis, 1891)

Mammalia - Blanford, W. T. (William Thomas), 1832 -1905 (Taylor and Francis, 1888)

The mammalian egg - Austin, C. R. (Colin Russell), 1914 -2004 (Thomas, 1961)

The mammalian fauna of the Edinburgh district : with records of occurrences of the rarer species throughout the south-east of Scotland generally - Evans, William, writer on mammals. (M'Farlane & Erskine, 1892)

The mammalian fauna of the Edinburgh district : with records of occurrences of the rarer species throughout the south-east of Scotland generally - Evans, William (M'Farlane & Erskine, 1892)

Mammalian hibernation; proceedings of the First International Symposium on Natural Mammalian Hibernation, May 13-15, 1959 - Dawe, Albert R., (The Museum, 1960)

Mammalian hybrids and generic limits - Van Gelder, Richard G. (Richard George), 1928 -1994 (American Museum of Natural History, 1977)

The mammals and life zones of Oregon - Bailey, Vernon, 1864 -1942 ([U.S. Govt. Print. Off.], 1936)

The mammals of Africa: country lists. Draft document - Thornback, Jane. (IUCN Conservation Monitoring Centre, UNEP, WWF, 1983)

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

The mammals of Big Bend Ranch State Park, Texas - Texas. Parks; Wildlife Department. (Museum of Texas Tech, 1997)

The mammals of China and Mongolia - Allen, Glover M. (Glover Morrill), 1879 -1942 (American Museum of Natural History, 1938)