The leaf mesophylls of twenty crops, their light spectra, and optical and geometrical parameters - Gausman, H. W. (USDA, Agricultural Research Service, Soil and Water Conservation Research Division, Rio Grande Soil and Water Research Center, 1971)

Leaflets - Brooklyn Botanic Garden. (1916)

Leaflets of Philippine botany (Oriental Printing Co, 1913)

Leaflets of Philippine botany (Oriental Printing Co, 1915)

Leaflets of Philippine botany (Oriental Printing Co, 1940)

Das Leben der Pflanze - Francé, R. H. (Raoul Heinrich), 1874 -1943 (Kosmos, Gesellschaft der Naturfreunde, 1906)

Lecciones de botánica explicadas en el Jardín Botánico del Colegio del Hospicio - Flores, Reyes G., (Tip. del Hospicio, 1863)

A lecture on the geography of plants - Barton, John, 1789 -1852 (Printed for Harvey and Darton, 1827)

Lectures on biology - Boelter, W. R. (William Richard) (J. Bale, sons & Danielsson, ltd, 1911)

Lectures on the elements of botany. Part I. Containing the descriptive anatomy of those organs, on which the growth and preservation of the vegetable depend - Thomson, Anthony Todd, 1778 -1849 (Printed for Longman, Hurst, Rees, Orme and Brown, 1822)

Legume intercrops and weed control in sun-grown coffee plantings in the Bolivian Yungas - Janicki, Lawrence John, 1947 - (1982)

Lehrbuch der Botanik für Hochschulen - Strasburger, Eduard, 1844 -1912 (G. Fischer, 1911)

Lehrbuch der Forstwirtschaft für Waldbau-und Försterschulen, sowie zum ersten forstlichen unterrichte für Aspiranten des Forstverwaltungsdienstes - Eckert, Karl, (W. Frick, 1908)

Lehrbuch der pilzparasitären Pflanzenkrankheiten mit besonderer Berücksichtigung der Krankheiten gärtnerischer Kulturgewächse - Höstermann, Gustav (P. Parey, 1923)

Die Lepidopteren der Schweiz - Frey, Heinrich, 1822 -1890 (W. Engelmann, 1880)

The Lepidopterists' news : the monthly newsletter of the Lepidopterists' Society - Lepidopterists' Society (Lepidopterists' Society, 1947)

The Lepidopterists' Society, commemorative volume, 1945-1973 - Clench, Harry K. (The Society, 1945)

The lesser corn stalk-borer - Luginbill, Philip, 1884 - (U.S. Dept. of Agriculture, 1917)

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

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

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

Letters from Alabama - Gosse, Philip Henry, 1810 -1888 (Morgan and Chase, 1859)

Letters from Alabama (U.S.) chiefly relating to natural history - Gosse, Philip Henry, 1810 -1888 (Morgan and Chase, 1859)

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

Lexikon der entomologischen welt, der carcinologischen und arachnologischen. Adressenbuch der lebenden entomologen und entomophilen, etc.; der carcinologen und arachnologen sammt ihren schriften, dann der naturforscher-akademien und deren verhandlungen, der zoologischen ephemeriden, bibliographien, biographien und realwörterbücher, der öffentlichen und privat-sammlungen der welt, der schriften über sammlungs- und aufbewahrungsweise der gliederthiere, mit doppelten registern und einer aufzählung aller entomologischen, carcinologischen und arachnologischen schriftsteller von Aristoteles an bis zur gegenwart - Gistel, Johannes, 1809 - (E. Schweizerbart, 1846)

Lexikon der entomologischen Welt, der carcinologischen und arachnologischen : Adressenbuch der lebenden Entomologen und Entomolophilen etc. ; ... von Aristoteles an bis zur Gegenwart - Gistel, Johannes, 1809 - (E. Schweizerbart'sche Verlagshandlung, 1846)

liao ning jing ji zhi wu zhi - Zhongguo ke xue yuan. Lin ye tu rang yan jiu suo. 中国科学院. 林业土壤研究所 (liao ning ren ming chu ban she)

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

Life-histories of northern animals : an account of the mammals of Manitoba - Seton, Ernest Thompson, 1860 -1946 (Scribner, 1909)

Life-histories of northern animals an account of the mammals of Manitoba - Seton, Ernest Thompson, 1860 -1946 (C. Scribner's Sons, 1909)

The life history of timothy - Evans, Morgan W. (Morgan William), 1879 - (U.S. Dept. of Agriculture, 1927)

Light and the behavior of organisms - Mast, Samuel Ottmar, 1871 -1947 (J. Wiley & Sons; [etc., etc.], 1911)

Light and the behavior of organisms - Mast, Samuel Ottmar, 1871 - (J. Wiley & Sons; [etc., etc.], 1911)

Lilly's crop book - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chas. H. Lilly Co, 1912)

Lilly's seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Chas. H. Lilly Co, 1936)

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

List of bulletins of the agricultural experiment stations in the United States for the calendar years 1921 and 1922 : supplement 1 - Pennington, Catherine E. (U.S. G.P.O, 1927)

List of bulletins of the agricultural experiment stations in the United States for the calendar years 1921 and 1922 : supplement 2 - Pennington, Catherine E. (U.S. G.P.O, 1926)

List of common and scientific plant names for Utah - United States. Soil Conservation Service. (Or, 1973)

List of fruits and vegetables in Spanish and English - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1993)

List of fruits and vegetables in Spanish and English - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1992)

A list of fungi (ustilaginales and uredinales) prepared for exchange - Patterson, Flora W. (Flora Wambaugh), 1847 -1928 (U.S. Dept. of Agriculture, 1922)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1934)

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.], 1936)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1937)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1938)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1939)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1940)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1941)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1942)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1943)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1948)

List of intercepted plant pests - United States. Agricultural Research Service. (U.S. G.P.O.], 1931)