The Laramie flora of the Denver basin. With a review of the Laramie problem - Knowlton, Frank Hall, 1860 -1926 (Govt. print. off, 1922)

Larvae of marine bivalves and echinoderms - Kasʹi︠a︡nov, V. L. (Smithsonian Institution Libraries, 1998)

The last of the Arctic voyages; being a narrative of the expedition in H. M. S. Assistance, under the command of Captian Sir Edward Belcher, C. B., in search of Sir John Franklin, during the years 1852-53-54 - Belcher, Edward, Sir, 1799 -1877 (L. Reeve, 1855)

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

Leçons d'anatomie Comparée ... recuellies et publiées sous ses yeux - Cuvier, Georges, baron, 1769 -1832 (1800)

Lecons élémentaires d'histoire naturelle, comprenant un apercu sur toute la zoologie et un traité de conchyliologie - Chenu, Jean-Charles, 1808 -1879 (Dauvin et Fontaine, 1847)

Leçons élémentaires sur l'histoire naturelle des animaux, conchyliologie; précédées d'un aperçu général sur la zoologie - Chenu, Jean-Charles, 1808 -1879 (J. J. Dubochet, Le Chevalier, 1847)

Leçons élémentaires sur l'histoire naturelle des animaux : précédées d'un aperçu général sur la zoologie Conchyliologie - Rémond, N. (J.J. Dubochet, Le Chevalier et Ce, Éditeurs, 1847)

Lectures on comparative anatomy - Cuvier, Georges, baron, 1769 -1832 (Printed at the Oriental Press by Wilson ... for T.N. Longman and O. Rees, 1802)

Lectures on Mollusca; or, "Shell-fish" and their allies - Carpenter, Philip P. (Philip Pearsall), 1819 -1877 (Printed at the Congressional globe office, 1861)

Lectures on the comparative anatomy and physiology of the invertebrate animals, delivered at the Royal college of surgeons - Owen, Richard, 1804 -1892 (Longman, Grown, Green, and Longmans, 1855)

Lectures on the comparative anatomy and physiology of the invertebrate animals : delivered at the Royal College of Surgeons - Owen, Richard, 1804 -1892 (Longman, Brown, Green & Longmans, 1855)

Lectures on the comparative anatomy and physiology of the invertebrate animals, delivered at the Royal college of surgeons, in 1843 - Owen, Richard, 1804 -1892 (Longman, Brown, Green, and Longmans, 1843)

Lectures on the comparative anatomy and physiology of the vertebrate animals : delivered at the Royal College of Surgeons of England, in 1844 and 1846 ... Part 1. Fishes - Owen, Richard, 1804 -1892 (Longman, Brown, Green, and Longmans, 1846)

Lehrbuch der Naturgeschichte - Burmeister, Hermann, 1807 -1892 (Anton und Gelbecke, 1830)

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 - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Veit, 1848)

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

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

Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Tiere : Allgemeiner Theil - Korschelt, E. (Eugen), 1858 -1946 (G. Fischer, 1909)

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

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

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)

Leitfaden für die chirurgische Anatomie / von Dr. E. Juvara - Juvara, Ernest, 1870 - (Verlag von August Hirschwald, 1899)

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, 1906)

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 (Seeley, Burnside, and Seeley, 1846)

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)

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)

Letters from the Canary Islands - Browne, D. J. (Daniel Jay), 1804 -1867 (G. W. Light, 1834)

Life and letters of Alexander Goodman More, F.R.S.E., F.L.S., M.R.I.A., with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis & co. (ltd.), 1898)

Life and letters of Alexander Goodman More, with selections from his zoological and botanical writings - More, Alexander Goodman, 1830 -1895 (Hodges, Figgis, 1898)

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

Life in the sea; or, The nature and habits of marine animals - Wraxall, Frederick Charles Lascelles, Sir, bart., 1828 -1865 (Houlston & Wright, 1860)

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

The life of the weevil - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead and company, 1922)

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)

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

List of duplicates of Japanese shells, marine, land, and fresh water - Stearns, Frederick, 1831 -1907 (J. F. Eby, printer, 1896)

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 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 Cuba in the . . . Museum collected by M. Ramon de la Sagra ; described by . . . A. d'Orbigny, in the "Histoire de l'Ile de Cuba." - British Museum (Natural History) (1854)

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 shells of the Canaries in the collection of the British Museum - Gray, John Edward, 1800 -1875 (Printed by Order of the Trustees [by Taylor and Francis], 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, 1851)