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

Lehrbuch der praktischen vergleichenden Anatomie - Vogt, Karl Christoph, 1817 -1895 (Vieweg, 1894)

Lehrbuch der praktischen vergleichenden Anatomie - Vogt, Karl Christoph, 1817 -1895 (Vieweg, 1888)

Lehrbuch der vergleichenden Anatomie der wirbellosen Thiere - Lang, Arnold, 1855 -1914 (G. Fisher, 1900)

Lehrbuch der vergleichenden Anatomie der Wirbellosen Thiere - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Veit, 1848)

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, 1892)

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

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

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

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

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, 1847)

Die Leitfossilien : ein Handbuch für den Unterricht und für das Bestimmen von Versteinerungen - Koken, Ernst (Ernst Friedrich Rudolf Karl), 1860 -1912 (Chr. Herm. Tauchnitz, 1896)

Die Leitfossilien, ein Handbuch für den Unterricht und für das Bestimmen von Versteinerungen - Koken, Ernst (Ernst Friedrich Rudolf Karl), 1860 -1912 (H. Tauchnitz, 1896)

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

Leopoldina - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmann & Sohn, 1872)

Lessons on shells : as given in a Pestalozzian school, at Cheam, Surrey - Mayo, Elizabeth, 1793 -1865 (C. J. Folsom, 1842)

Lessons on shells, as given to children between the ages of eight and ten, in a Pestalozzian school, at Cheam, Surrey - Mayo, Elizabeth, 1793 -1865 (R.B. Seeley, W. Burnside, 1838)

Lessons on shells, as given to children between the ages of eight and ten, in a Pestalozzian school, at Cheam, Surrey - Mayo, Elizabeth, 1793 -1865 (Seeley, Burnside, and Seeley, 1846)

Lethaea geognostica oder Abbildungen und Beschreibungen der für die Gebirgs-Formationen bezeichnendsten Versteinerungen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (1838)

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

Lethaea rossica, ou, Paléontologie de la Russie - Eichwald, Carl Eduard von, 1795 -1876 (E. Schweizerbart, 1867)

Letters to a young naturalist on the study of nature and natural theology - Drummond, James L. (James Lawson), 1783 -1853 (Longman, Rees, Orme, Brown, Green, & Longman, 1832)

Letters to a young naturalist on the study of nature and natural theology - Drummond, James L. (James Lawson), 1783 -1853 (Longman, Rees, Orme, Brown, and Green, 1831)

Life beneath the waters, or, The aquarium in America - Edwards, Arthur M. (H. Baillière, 1858)

Life by the seashore : an introduction to natural history - Newbigin, Marion I. (Marion Isabel), 1869 -1934 (Swan Sonnenschein, 1910)

The life of the mollusca - Woodward, Bernard Barham, 1853 -1930 (Methuen & Co, 1913)

Life on the earth its origin and succession - Phillips, John, 1800 -1874 (Macmillan, 1860)

Life, outlines of general bioloy - Thomson, J. Arthur (John Arthur), 1861 -1933 (Harper, 1900)

The Linnæan system of conchology : describing the orders, genera, and species of shells arranged into divisions and families : with a view to facilitate the student's attainment of the science - Mawe, John, 1764 -1829 (Printed for and sold by the author, and Longman, Hurst, Rees, Orme, and Brown, 1823)

Linné - Fries, Theodor Magnus, 1832 -1913 (Fahlcrantz & co, 1903)

List of British Mollusca & Brachiopoda - Chaster, G. W. (Dulau, 1901)

List of fossils, types and figured specimens, used in the palaeontological work of R.P. Whitfield, showing where they are probably to be found at the present time - New York Academy of Sciences. (New Era Print. Co, 1899)

List of marine Mollusca comprising the Quaternary fossils and recent forms from American localities between Cape Hatteras and Cape Roque, including the Bermudas - Dall, William Healey, 1845 -1927 (Govt. Print. Off, 1885)

List of mollusca and other forms of marine life collected in the years 1889-1890, in Japan - Stearns, F. (1891)

List of the books, memoirs, and miscellaneous papers - Gray, John Edward 1800 -1875 (Printed for private distribution, 1875)

List of the books, memoirs, and miscellaneous papers by Dr. J.E. Gray, F.R.S. : with a few historical notes - Gray, John Edward 1800 -1875 (Printed for private distribution, 1872)

List of the British Marine invertebrate fauna - McAndrew, Robert. (Taylor and Francis, 1860)

List of the British marine invertebrate fauna. For the Dredging Committee of the British Association - McAndrew, Robert. (Taylor and Francis, 1860)

List of the shells of South America in the collection of the British Museum - Orbigny, Alcide Dessalines d', 1802 -1857 (Printed by order of the trustees, 1854)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1848)

List of the specimens of British animals in the collection of the British Museum - Gray, John Edward 1800 -1875 (Printed by order of the Trustees, 1851)

Liste des algues marines : observées jusqu'a ce jour entre l'embouchure de l'Escaut et la Corogne (incl. Îles anglo-normandes) - Chalon, Jean, 1846 -1921 (Imp. J.-E. Buschmann, 1905)

Liste des algues marines : observées jusqu'a ce jour entre l'embouchure de l'Escaut et la Corogne (incl. îles anglo-normandes) - Chalon, Jean, 1846 -1921 (J.-E. Buschmann, 1905)

L.M.B.C. memoirs on typical British marine plants and animals - Liverpool Marine Biology Committee. (Liverpool Marine Biology Committee, 1908)

Locupletissimi rerum naturalium thesauri accurata descriptio, et iconibus artificiosissimis expressio, per universam physices historiam : opus, cui, in hoc rerum genere, nullum par exstitit - Boerhaave, Herman, 1668 -1738 (Apud J. Wetstenium, & Gul. Smith, & Janssonio-Waesbergios, 1765)

The London and Edinburgh philosophical magazine and journal of science (Richard and John E. Taylor, 1834)

The London and Edinburgh philosophical magazine and journal of science (Richard and John E. Taylor, 1836)

The London, Edinburgh and Dublin philosophical magazine and journal of science (Taylor & Francis, 1859)

The London, Edinburgh and Dublin philosophical magazine and journal of science (Taylor & Francis, 1904)

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

M. Th. Brünnichii Zoologiae fundamenta praelectionibus academicis accommodata = Grunde i dyrelaeren - Brünnich, M. Thr. (Morten Thrane), 1737 -1827 (Apud Frider. Christ. Pelt, 1772)

The Macleay memorial volume - Linnean Society of New South Wales. (The Society, 1893)

Madras fisheries bulletin - Madras (India : State). Fisheries Bureau. (Printed by the Superintendent, Government Press, 1910)

Madras fisheries bulletin - Madras (India : State). Fisheries Bureau. (Printed by the Superintendent, Government Press, 1922)

Magasin de zoologie, d'anatomie comparée et de palaeontologie (Arthus Bertrand, 1844)

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, 1829)

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, 1831)

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, 1835)

The Magazine of natural history / conducted by Edward Charlesworth - Charlesworth, Edward. (s.n.], 1838)

The Magazine of natural history / conducted by Edward Charlesworth - Charlesworth, Edward. (s.n.], 1839)