Kunstformen der Natur - Bibliographisches Institut Leipzig. (Verlag des Bibliographischen Instituts, 1899)

Kunstformen der Natur - Bibliographisches Institut Leipzig. (Verlag des Bibliographischen Instituts, 1904)

A laboratory course in general zoölogy; a guide to the dissection and comparative study of animals - Pratt, Henry Sherring, 1859 - (Ginn and Company, 1927)

Laboratory directions in general zoölogy - Guthrie, Mary Jane, 1895 - (J. Wiley & sons, inc.; London, Chapman & Hall, limited, 1939)

A laboratory guide for beginners in zoology - Weed, Clarence Moores, 1864 -1947 (Heath & co, 1902)

A laboratory guide for beginners in zoology - Weed, Clarence Moores, 1864 -1947 (D. C. Heath & Co, 1902)

Laboratory guide in zoology - University of Cambridge. (1900)

A laboratory guide to the study of parasitology - Herms, William B. (William Brodbeck), 1876 -1949 (The Macmillan company, 1913)

A laboratory manual for elementary zoology - Hyman, Libbie Henrietta, 1888 -1969 (University Press, 1919)

A laboratory manual for elementary zoölogy - Hyman, Libbie Henrietta, 1888 -1969 (The University of Chicago Press, 1919)

A laboratory manual of invertebrate zoology - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W.B. Saunders, 1907)

A laboratory manual of invertebrate zoölogy - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W. B. Saunders company, 1913)

A laboratory manual of invertebrate zoology - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W. B. Saunders company, 1936)

A laboratory manual of invertebrate zoölogy - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W. B. Saunders, 1907)

A laboratory manual of invertebrate zoölogy - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W. B. Saunders, 1913)

A laboratory manual of invertebrate zoölogy - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W.B. Saunders company, 1920)

A laboratory manual of invertebrate zoölogy, by Gilman A. Drew ... with the aid of former and present members of the zoölogical staff of instructors at the Marine biological laboratory, Woods Hole, Mass - Drew, Gilman A. (Gilman Arthur), 1868 -1934 (W. B. Saunders company, 1928)

Laboratory studies in zoology - Reed, H. D. (Hugh Daniel), 1875 -1937 (McGraw-Hill, 1930)

Laboratory technique in biology and medicine - Cowdry, E. V. (Edmund Vincent), 1888 -1975 (Williams & Wilkins Co, 1948)

Laboratory technique in biology and medicine - Cowdry, E. V. (Edmund Vincent), 1888 -1975 (Williams & Wilkins, 1952)

Lake Huron bibliography, with limited summaries - United States. Environmental Protection Agency. (Great Lakes Research Division, Great Lakes and Marine Waters Center, University of Michigan, 1981)

Lake Maxinkuckee : a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Dept. of Conservation, 1920)

Lake Maxinkuckee. a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Wm. B. Burford, printer], 1920)

The lake trout (Salvelinus namaycush), of Swan Lake, Alberta - Alberta. Dept. of Recreation, Parks; Wildlife. Fish; Wildlife Division, (Government of Alberta, 1968)

Lake Turkana : a report on the findings of the Lake Turkana project, 1972-1975 - Great Britain. Overseas Development Administration. (1982)

Die Land-, Süsswasser- und See-Conchilien, nebst den übrigen Weichthieren und den Ringelwürmern und Pflanzenthieren : dargestellt in getreuen Abbildungen und mit ausführlicher Beschreibung - Reichenbach, A. B. (Anton Benedikt), 1807 -1880 (Verlag von Eduard Eisenach, 1842)

Latreille's Naturliche Familien des Thierreichs - Latreille, P. A. (Pierre André), 1762 -1833 (Im Verlage des Gr. H.S. priv. Landes-Industrie- Comptoirs, 1827)

Das Leben der Binnengewässer - Lampert, Kurt, 1859 -1918 (C.H. Tauchnitz, 1899)

Leech collections from Chile including two new species of Helobdella (Annelida, Hirudinida) - Siddall, Mark Edward, 1966 - (American Museum of Natural History, 2004)

Leech collections from Washington State, with the description of two new species of Placobdella (Annelida, Glossiphoniidae) - Overstreet, Robin M (American Museum of Natural History, 2010)

Leeches from Chiapas, Mexico, with a new species of Erpobdella (Hirudinida, Erpobdellidae) - Oceguera-Figueroa, Alejandro (American Museum of Natural History, 2018)

Leeches (Hirudinea) their structure, physiology, ecology and embryology - Mann, K. H. (Kenneth Henry), 1923 - (Pergamon Press, 1962)

Leeches of Laguna Volcán, Bolivia, including a new species of Helobdella (Clitellata, Hirudinea) - Siddall, Mark Edward, 1966 - (American Museum of Natural History, 2001)

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

Lehrbuch der Paläozoologie - Stromer von Reichenbach, Ernst, Freiherr, 1871 -1952 (B.G. Teubner, 1909)

Lehrbuch der vergleichenden Anatomie der wirbellosen Thiere - Lang, Arnold, 1855 -1914 (Fischer, 1894)

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1890)

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Tiere : Specieller Thiel - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1890)

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Tiere : Allgemeiner Theil - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1910)

Lehrbuch der vergleichenden Histologie der Tiere - Schneider, Karl Camillo (Fischer, 1902)

Lehrbuch der Zoologie - Hertwig, Richard Karl Wilhelm Theodor von Sir Richard Karl Wilhelm Theodor von Hertwig 1850 -1937 (G. Fischer, 1910)

Leitfaden für das zoologische Praktikum - Kükenthal, W. G. (Willy Georg), 1861 -1922 (G. Fischer, 1912)

Leitfaden für das zoologische Praktikum - Kükenthal, W. G. (Willy Georg), 1861 -1922 (Gustav Fischer, 1910)

Leitfaden für das zoologische Praktikum - Kükenthal, W. G. (Willy Georg), 1861 -1922 (Fischer, 1912)

Die Leitungsbahnen im Nervensystem der wirbellosen Tiere - Droogleever Fortuyn, Aemilius Bernardus, 1886 - (F. Bohn, 1920)

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

Life in ponds and streams - Furneaux, William S. (Longmans, Green, 1896)

Limnology of Sounding Creek : an Astatic, Prairie Stream - Retallack, John T. (1975)

Limnology of tundra ponds, Barrow, Alaska - Hobbie, John E. (Dowden, Hutchinson & Ross, 1980)

The lipids, their chemistry and biochemistry - Deuel, Harry James, 1897 -1956 (Interscience Publishers, 1951)

London Bird Report - London Natural History Society. (1962)

London Naturalist - London Natural History Society. (London Natural History Society, 1968)

London Naturalist - London Natural History Society. (London Natural History Society, 1970)

London Naturalist - London Natural History Society. (London Natural History Society, 1973)

London Naturalist - London Natural History Society. (London Natural History Society, 1974)

London Naturalist - London Natural History Society. (London Natural History Society, 1975)

London Naturalist - London Natural History Society. (London Natural History Society, 1977)

London Naturalist - London Natural History Society. (London Natural History Society, 1978)

London Naturalist - London Natural History Society. (London Natural History Society, 1980)

London Naturalist - London Natural History Society. (London Natural History Society, 1982)

London Naturalist - London Natural History Society. (London Natural History Society, 1983)

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, 1989)

London Naturalist - London Natural History Society. (London Natural History Society, 1990)

London Naturalist - London Natural History Society. (London Natural History Society, 1992)

London Naturalist - London Natural History Society. (London Natural History Society, 1994)

London Naturalist - London Natural History Society. (London Natural History Society, 2002)

London Naturalist - London Natural History Society. (London Natural History Society, 2003)

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

London Naturalist - London Natural History Society. (London Natural History Society, 2005)

London Naturalist - London Natural History Society. (London Natural History Society, 2012)

Long-term changes in beach fauna at Duck, North Carolina - Coastal Engineering Research Center (U.S.) (The Center, 1982)

Lord Howe Island. Its zoology, geology, and physical characters - Ogilby, John Douglas 1853 -1925 (C. Potter, government printer, 1889)

The lower animals; living invertebrates of the world - Buchsbaum, Ralph, 1907 -2002 (Doubleday, 1960)

Malacologia - Institute of Malacology. (Institute of Malacology], 1969)

Malacologia - Institute of Malacology. (Institute of Malacology], 2012)

Malacologia - Institute of Malacology. (Institute of Malacology], 2015)

Manual of elementary zoology - Borradaile, L. A. (Lancelot Alexander), 1872 -1945 (Oxford University Press, 1958)

A manual of elementary zoology - Borradaile, L. A. (Lancelot Alexander), 1872 -1945 (H. Frowde, Hodder & Stoughton, 1920)

A manual of organic materia medica and pharmacognosy; an introduction to the study of the vegetable kingdom and the vegetable and animal drugs (with syllabus of inorganic remedial agents) comprising the botanical and physical characteristics, source, constituents, pharmacopoeial preparations, insects injurious to drugs, and pharmacal botany - Sayre, Lucius Elmer. (Blakiston, 1917)

A manual of palaeontology for the use of students with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1872)

A manual of palaeontology for the use of students with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1889)

A manual of palæontology for the use of students : with a general introduction on the principles of palæontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1879)

A manual of palæontology for the use of students : with a general introduction on the principles of palaeontology - Nicholson, Henry Alleyne, 1844 -1899 (Blackwood, 1872)

A manual of palæontology, for the use of students; with a general introduction on the principles of palæontology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1879)

A manual of scientific terms, pronouncing, etymological, and explanatory, chiefly comprising terms in botany, natural history, anatomy, medicine, and veterinary science, with an appendix of specific names. Designed for the use of junior medical students, and others studying one or other of these sciences - Stormonth, James, 1824 -1882 (Maclachlan and Stewart, 1885)

Manual of the anatomy of invertebrated animals - Huxley, Thomas Henry, 1825 -1895 (Appleton, 1888)

Manual of the anatomy of invertebrated animals - Huxley, Thomas Henry, 1825 -1895 (Appleton, 1901)