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

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

Leitfossilien : ein Hilfsbuch zum Bestimmen von Versteinerungen bei geologischen Arbeiten in der Sammlung und im Felde - Dacqué, Edgar, 1878 -1945 (Verlag von Gebrüder Borntraeger, 1908)

Lessons in botany - Atkinson, George Francis, 1854 -1918 (H. Holt and company, 1900)

Lessons in botany - Atkinson, George Francis, 1854 -1918 (Holt, 1900)

Lessons in elementary botany for secondary schools - Macbride, Thomas H. (Thomas Huston), 1848 -1934 (Allyn and Bacon, 1896)

Lethaea geognostica oder Abbildungen und Beschreibungen der für die Gebirgs-Formationen bezeichnendsten Versteinerungen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (1835)

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

Lethaea geognostica oder Abbildungen und Beschreibungen der für die Gebirgs-Formationen bezeichnendsten Versteinerungen - Bronn, H. G. (Heinrich Georg), 1800 -1862 (1837)

Lethaea geognostica, oder Beschreibung und Abbildung der für die Gebirgs-Formationen bezeichnendsten Versteinerungen. Hrsg. von einer Vereinigung von Palaeontologen - Roemer, Ferdinand, 1818 -1891 (E. Schweizerbart, 1876)

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)

The life of North American insects - Preston, Henry C. (Harper & Brothers, 1859)

The life of North American insects - Preston, Henry C. (Harper, 1859)

The life of North American insects : illustrated by numerous colored engravings and narratives - Jaeger, B. (Benedict), 1789 -1869 (Sayles, Miller and Simons, printers, 1854)

The life of North American insects - Preston, Henry C. (Sayles, Miller and Simons, printers, 1854)

The life of the grasshopper - Fabre, Jean-Henri, 1823 -1915 (McClelland, Goodchild & Stewart, 1917)

The life of the grasshopper - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead, 1920)

The life of the grasshopper - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead, 1917)

The life of the grasshopper - Fabre, Jean-Henri, 1823 -1915 (Dodd, Mead and Company, 1917)

The life of the grasshopper. Translated by Alexander Teixeira de Mattos - Fabre, Jean-Henri, 1823 -1915 (McClelland, Goodchild & Stewart, 1917)

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

Linnaea : Ein Journal für die Botanik in ihrem ganzen Umfange - Schlechtendal, D. F. L. von (Diedrich Franz Leonhard von), 1794 -1866 (F. Dümmler, 1841)

List of Canadian hepaticæ - Geological; Natural History Survey of Canada. (W.F. Brown, 1890)

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 intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1935)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1971)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1973)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1977)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1984)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1985)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1987)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1983)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1986)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1982)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1978)

A list of prepared specimens in Hanazono Entomological Laboratory established by Motojiro Suzuki = Hanazono Konchu Kenkyujo hyohon mokuroku - Hanazono Konchu Kenkyujo. (Hanazono Konchu Kenkyujo, 1915)

A List of the insects of New York : with a list of the spiders and certain other allied groups - Leonard, Mortimer Demarest, 1890 - (Cornell University, 1928)

A list of the mosses, liverworts and lichens of Illinois - Hall, Elihu, 1822 -1882 (Illinois State Laboratory of Natural History, 1878)

A list of the plants of Arkansas - Branner, John Casper, 1850 -1922 (Press Printing Co, 1891)

List of trees, shrubs, and principal climbers, etc., recorded from Burma : with vernacular names - Lace, J. H. (John Henry), 1857 -1918 (Supt., Govt. Print, 1922)

A list of works on North American entomology - Banks, Nathan, 1868 -1953 (Govt. Print. Off, 1900)

The Liverworts : British and foreign - Fry, Agnes 1869 - (Witherby & co, 1911)

The living flora of West Virginia - Millspaugh, Charles Frederick, 1854 -1923 (Wheeling News Litho. Co, 1913)

The London catalogue of British mosses and hepatics - Botanical Record Club. (David Bogue, 1881)

The London, Edinburgh and Dublin philosophical magazine and journal of science (Taylor & Francis, 1858)

The London journal of botany : containing figures and descriptions of such plants as recommend themselves by their novelty, rarity, history, or uses : together with botanical notices and information and and occasional portraits and memoirs of eminent botanists - Hooker, William Jackson, Sir, 1785 -1865 (H. Baillière, 1847)

Lotos - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (Verlag des Deutschen Naturwissenschaftlich-Medizinischen Vereines für Böhmen "Lotos", 1911)

Lotos : Zeitschrift für Naturwissenschaften - Deutscher Naturwissenschaftlich-Medizinischer Verein für Böhmen "Lotos." (1853)

Loudon's Hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain. Part I. The Linnaean arrangement : part II. The Jussieuean arrangement - Loudon, J. C. (John Claudius), 1783 -1843 (Printed for Longman, Rees, Orme, Brown, and Green & Longman, 1839)

Loudon's hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain - Loudon, J. C. (John Claudius), 1783 -1843 (Longman(etc],), 1850)

Loudon's hortus britannicus : a catalogue of all the plants indigenous, cultivated in, or introduced to Britain - Loudon, J. C. (John Claudius), 1783 -1843 (Longman(etc],), 1839)