Elementary text-book of zoology - Claus, Carl, 1835 -1899 (W. S. Sonnenschein, 1884)

Elementary text-book of zoology, general part and special part: protozoa to insecta - Claus, Carl, 1835 -1899 (Swan Sonnenschein, 1892)

Elementary text-book of zoology - Claus, Carl, 1835 -1899 (Macmillan, 1884)

Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote - Claus, Carl, 1835 -1899 (Swan Sonnenschein & co, 1892)

Elementary textbook of economic zoology and entomology - Kellogg, Vernon L. (Vernon Lyman), 1867 -1937 (H. Holt and company, 1915)

Elementary zoology - Beddard, Frank E. (Frank Evers), 1858 -1925 (Longmans, Green, and Co, 1898)

Elements of biology - Weisz, Paul B., 1921 - (McGraw-Hill Company of Canada, 1963)

Elements of biology; a practical text-book correlating botany, zoology, and human physiology - Hunter, George W. (George William), 1873 -1948 (American book company, 1907)

Elements of biology, with special reference to their rôle in the lives of animals - Buchanan, James William, 1888 -1952 (Harper & brothers, 1933)

Elements of Comparative Anatomy - Bell, F. J. (Francis Jeffrey), 1855 -1924 (1878)

Elements of comparative anatomy - Bell, F. J. (Francis Jeffrey), 1855 -1924 (Macmillan, 1878)

Elements of comparative anatomy - Bell, F. J. (Francis Jeffrey), 1855 -1924 (Macmillan and Co, 1878)

Elements of comparative zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1904)

Elements of comparative zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1897)

Emendation of Glyphobothrium and Glyphobothrium zwerneri (Tetraphyllidea) collected from Rhinoptera bonasus (Myliobatiformes: Myliobatidae) in Campeche, México, with details of the bothridial suckers - Monks, Scott (Museum of Texas Tech University, 2015)

Entomological news - American Entomological Society. (American Entomological Society, 1953)

Entomological news - American Entomological Society. (American Entomological Society, 1954)

Entozoa, an introduction to the study of helminthology, with reference more particularly to the internal parasites of man - Cobbold, T. Spencer (Thomas Spencer), 1828 -1886 (Groombridge, 1864)

Especies acuáticas invasoras en México - Koleff Osorio, Patricia (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2014)

Essays upon heredity and kindred biological problems - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Clarendon Press, 1892)

Essays upon heredity and kindred biological problems - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (At the Clarendon Press, 1892)

Essays upon heredity and kindred biological problems, by Dr. August Weismann ... Ed. by Edward B. Poulton ... Selmar Schönland ... and Arthur E. Shipley...Authorised translation - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Clarendon press, 1891)

Essays upon heredity and kindred biological problems, by Dr. August Weismann. Ed. by Edward B. Poulton, Selmar Schönland, and Arthur E. Shipley. Authorised translation - Shipley, A. E. Sir, (Arthur Everett), 1861 -1927 (Clarendon Press, 1891)

Essentials of biology presented in problems - Hunter, George W. (George William), 1873 -1948 (American Book Company, 1911)

Essentials of biology presented in problems - Hunter, George W. (George William), 1873 -1948 (American book company, 1911)

Essentials of biology presented in problems, by George William Hunter - Hunter, George W. (George William), 1873 -1948 (American book company, 1911)

Essentials of tropical medicine - Masters, Walter Edgar. (J. Bale, sons & Danielsson, ltd, 1920)

Essentials of zoology, emphasizing principles of animal biology - Potter, George Edwin, 1898 - (Mosby, 1948)

Essentials of zoology for students of medicine and first year students of science - Meek, Alexander, 1865 - (Longmans, Green and co, 1922)

Evolution of life - Chapman, Henry C. (Henry Cadwalader), 1845 -1909 (1873)

The evolution of man - Haeckel, Ernst, 1834 -1919 (D. Appleton and company, 1897)

The evolution of man : a popular exposition of the principal points of human ontogeny and phylogeny - Haeckel, Ernst, 1834 -1919 (D. Appleton, 1879)

The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny - Haeckel, Ernst, 1834 -1919 (C. K. Paul & co, 1879)

The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny - Haeckel, Ernst, 1834 -1919 (Fowle, 1892)

The evolution of man, a popular scientific study - Haeckel, Ernst, 1834 -1919 (Putnam, 1910)

The evolution of man : a popular exposition of the principal points of human ontogeny and phylogeny - Haeckel, Ernst, 1834 -1919 (Appleton, 1879)

The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny. From the German of Ernst Haeckel - Haeckel, Ernst, 1834 -1919 (D. Appleton and Co, 1897)

The evolution of man: a popular exposition of the principal points of human ontogeny and phylogeny - Haeckel, Ernst, 1834 -1919 (D. Appleton and company, 1898)

The evolution of man: a popular exposition of the principal points of human ontogney phylogeny - Haeckel, Ernst, 1834 -1919 (Werner Co, 1876)

The evolution of man; a popular scientific study - McCabe, Joseph, 1867 -1955 (P. Eckler, publisher, 1906)

The evolution of the metazoa - Hadzi, J. (Jovan), 1884 -1972 (Macmillan, 1963)