Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1882)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1886)

Kungl. Svenska vetenskapsakademiens handlingar - Kungl. Svenska vetenskapsakademien. (L.L. Grefing, 1892)

Laboratory and field manual of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & company, 1907)

Laboratory and field manual of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & Company, 1907)

Laboratory directions in general biology prepared to accompany text book on General biology - Needham, James G. (James George), 1868 -1957 (The Comstock publishing co, 1922)

A laboratory manual of botany; outlines and directions for laboratory and field-work in botany in secondary schools - Caldwell, Otis W. (Otis William), 1869 -1947 (D. Appleton and Co, 1902)

A laboratory manual of general botany - Wilkerson, Numa Francis. (Duke University Press, 1926)

A laboratory manual of high school botany - Clements, Frederic E. (Frederic Edward), 1874 -1945 (The University publishing co, 1900)

Laboratory outlines for general botany, for the elementary study of plant structures and functions from the standpoint of evolution - Schaffner, John H. (John Henry), 1866 -1939 (O., The author, 1915)

Laboratory outlines for general botany, for the elementary study of plant structures and functions from the standpoint of evolution - Schaffner, John H. (John Henry), 1866 -1939 (The author, 1922)

Laboratory outlines for general botany, for the elementaty study of plant structures and functions from the standpoint of evolution - Schaffner, John H. (John Henry), 1866 -1939 (Tha author, 1913)

Lake Maxinkuckee : a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Dept. of Conservation, 1920)

Lake Maxinkuckee. a physical and biological survey - Evermann, Barton Warren, 1853 -1932 (Wm. B. Burford, printer], 1920)

Das Leben der Binnengewässer - Lampert, Kurt, 1859 -1918 (C.H. Tauchnitz, 1899)

Lectures on plant physiology - Harvey-Gibson, R. J. (Robert John), 1860 -1929 (Clarendon Press, 1907)

Lectures on plant physiology - Jost, Ludwig, 1865 -1947 (Clarendon Press, 1907)

Lectures on sex and heredity, delivered in Glasgow, 1917-18 - Kerr, John Graham, 1869 -1957 (Macmillan and co., limited, 1919)

Lectures on sex and heredity, delivered in Glasgow, 1917-18 - Bower, F. O. (Frederick Orpen), 1855 -1948 (Macmillan, 1919)

Lectures on the evolution of plants (The Macmillan Co, 1899)

Lectures on the evolution of plants (The Macmillan company, 1899)

Lectures on the evolution of plants (The Macmillan company, 1910)

Lectures on the physiology of plants - Vines, Sydney Howard, 1849 -1934 (Univ. Press, 1886)

Lectures on the physiology of plants - Vines, Sydney Howard, 1849 -1934 (University Press, 1886)

Lectures on the physiology of plants - Sachs, Julius, 1832 -1897 (Clarendon Press, 1887)

Lectures on the physiology of plants - Vines, Sydney Howard, 1849 -1934 (University press, 1886)

Lectures on the physiology of plants - Vines, Sydney Howard, 1849 -1934 (The University Press, 1886)

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

Lehrbuch der Botanik; für höhere Lehranstalten und die Hand des Lehrers, sowie für alle Freunde der Natur. Unter besonderer Berücksichtigung biologischer Verhältnisse bearb. von Otto Schmeil - Schmeil, O. (Otto), 1860 -1943 (Quelle & Meyer, 1911)

Lehrbuch der Botanik, für mittlere und höhere lehranstalten - Prantl, Karl, 1849 -1893 (W. Engelmann, 1891)

Lehrbuch der Botanik für mittlere und höhere Lehrenstalten - Prantl, Karl, 1849 -1893 (W. Engelmann, 1883)

Lehrbuch der Botanik; nach dem Gegenwärtigen Stand der Wissenschaft - Frank, Albert Bernhard, 1839 -1900 (W. Engelmann, 1892)

Lehrbuch der botanik nach dem gegenwärtigen stand der wissenschaft - Sachs, Julius, 1832 -1897 (W. Engelmann, 1874)

Lehrbuch der ökologischen Pflanzengeographie - Warming, Eugenius, 1841 -1924 (Gebrüder Borntraeger, 1918)

Lehrbuch der Pflanzenphysiologie, mit besonderer Berücksichtigung der landwirtschaftlichen Kulturpflanzen - Frank, H. B (P. Parey, 1896)

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