Lehrbuch der vergleichenden mikroskopischen Anatomie der Wirbeltiere - Oppel, Albert, 1863 -1915 (Fischer, 1896)

Lehrbuch der Zoologie - Hertwig, Richard Karl Wilhelm Theodor von Sir Richard Karl Wilhelm Theodor von Hertwig 1850 -1937 (G. Fischer, 1893)

Lehrbuch der Zoologie für Studierende und Lehrer - Boas, J. E. V. (Johan Erik Vesti), 1855 -1935 (G. Fischer, 1890)

Lehrbuch der Zoologie - Claus, Carl, 1835 -1899 (Elwert, 1897)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1891)

Lehrbuch der zoologie - Claus, Carl, 1835 -1899 (N. G. Elwert, 1883)

Lehrbuch der Zoologie - Hertwig, Richard Karl Wilhelm Theodor von Sir Richard Karl Wilhelm Theodor von Hertwig 1850 -1937 (G. Fischer, 1892)

Lehrbuch der Zootomie; anatomische Charakteristik der Thierklassen, als Einleitung in das Studium der Zoologie, vergleichenden Anatomie und Physiologie mit Hinweisung auf die Icones zootomicae - Frey, Heinrich, 1822 -1890 (Voss, 1843)

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 (G. Fischer, 1912)

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

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1876)

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1883)

The lesson of evolution - Hutton, Frederick Wollaston, 1836 -1905 (Duckworth and Co, 1902)

The lesson of evolution - Hutton, Frederick Wollaston, 1836 -1905 (Printed for private circulation, 1907)

Lessons in elementary anatomy - Mivart, St. George Jackson, 1827 -1900 (MacMillan, 1889)

Lethaea rossica, ou, Paléontologie de la Russie - Eichwald, Carl Eduard von, 1795 -1876 (E. Schweizerbart, 1852)

Lexicon generum phanerogamarum inde ab anno MDCCXXXVII : cum nomenclatura legitima internationali et systemate inter recentia medio - Post, Thomas Erik von, 1858 -1912 (Deutsche verlags-anstalt, 1904)

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

Life; a book for elementary students - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (University Press, 1923)

The life of animals; the mammals - Ingersoll, Ernest, 1852 -1946 (The Macmillan Company, 1906)

The life of inland waters; an elementary text book of freshwater biology for American students - Needham, James G. (James George), 1868 -1957 (The Comstock publishing company, 1916)

The life of inland waters : an elementary text book of fresh-water biology for American students - Needham, James G. (James George), 1868 -1957 (Comstock Pub. Co, 1916)

The life of inland waters; an elementary text book of fresh-water biology for students - Needham, James G. (James George), 1868 -1957 (Comstock Publishing Co, 1937)

The life of inland waters; an elementary textbook of fresh-water biology for students - Needham, James G. (James George), 1868 -1957 (C. C. Thomas, 1930)

The life of mammals - Ingersoll, Ernest, 1852 -1946 (Macmillan, 1917)

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

A list of Macro-Lepidoptera occurring in the neighbourhood of Folkestone - Knaggs, H. Guard (Henry Guard), 1832 -1908 (Folkestone Natural History Society, 1870)

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)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society by Longmans, Green, Reader, and Dyer, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (printed for the Society, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1896)

List of the vertebrated animals now or lately living in the gardens of the Zoological society of London - Sclater, Philip Lutley, 1829 -1913 (The Society, 1877)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (Printed for the Society, and sold ... Longmans, Green, Reader, and Dyer, 1883)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Zoological Society of London. (Printed for the Society, 1896)

List of the vertebrated animals now or lately living in the gardens of the Zoological Society of London - Sclater, Philip Lutley, 1829 -1913 (Printed for the Society, 1879)

List of works relating to the natural history departments of the British Museum, to the end of the year 1910 - British Museum (Natural History) (Trustees of the British Museum, 1911)

Living organisms : an account of their origin & evolution - Goodrich, Edwin S. (Edwin Stephen), 1868 -1946 (Clarendon Press, 1924)

The living world: a complete natural history of the world's creatures, fishes, reptiles, insects, birds and mammals - Buel, James W. (James William), 1849 -1920 (Holloway & co, 1889)

The London and Edinburgh philosophical magazine and journal of science (Richard and John E. Taylor, 1838)

London birds and beasts - Tristram-Valentine, J. T. (H. Cox, 1895)

The London, Edinburgh and Dublin philosophical magazine and journal of science (Taylor & Francis, 1840)

Lunds universitets årsskrift 2. Afd Medicin samt matematiska och naturvetenskapliga ämmen - Lunds universitet. (Universitets], 1920)

Madagascar: an environmental profile (1987)

Magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology - Loudon, J. C. (John Claudius), 1783 -1843 (printed for Longman, Rees, Orme, Brown, and Green, 1837)

Os mamíferos do Brasil - Goeldi, Emílio Augusto, 1859 -1917 (Livraria classica de Alves & C, 1893)

Mamíferos fósiles de la República Argentina Parte III Homalodontes - Ameghino, Florentino, 1853 -1911 (Taller de Impresiones Oficiales, 1918)

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

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

The mammalia in their relation to primeval times - Schmidt, Oscar, 1823 -1886 (Paul, 1885)

The Mammalia in their relation to primeval times - Schmidt, Oscar, 1823 -1886 (K. Paul, Trench, Trübner, 1894)

The Mammalia in their relation to primeval times - Schmidt, Oscar, 1823 -1886 (D. Appleton and Company, 1886)

Mammalia. Popularly described by typical species. With numerous anecdotes - Blyth, Edward, 1810 -1873 (F. Warne and Co, 1870)

Mammalia, recent and extinct; an elementary treatise for the use of the public schools of New South Wales - Scott, A. W. (Alexander Walker), 1800 -1883 (Thomas Richards, 1873)

Mammalia, recent and extinct; an elementary treatise for the use of the public schools of New South Wales - Scott, A. W. (Alexander Walker), 1800 -1883 (T. Richards, government printer, 1873)

Mammalia : their various forms and habits, popularly illustrated by typical species - Figuier, Louis, 1819 -1894 (Cassell, Petter, Galpin & Co, 1883)

Mammalia. Their various orders and habits popularly illustrated by typical species - Blyth, Edward, 1810 -1873 (D. Appleton, 1870)

Mammalian anatomy, with special reference to the cat - Davison, Alvin, 1868 -1915 (P. Blakiston's son & co, 1903)

Mammalian anatomy : with special reference to the cat - Davison, Alvin, 1868 -1915 (P. Blakiston, 1910)