An elementary course of practical zoology - Parker, T. Jeffery (Thomas Jeffery), 1850 -1897 (Macmillan and co., ltd, 1922)

The elementary principles of general biology - Abbott, James Francis, 1876 -1926 (The Macmillan company, 1914)

The elementary principles of general biology - Abbott, James Francis, 1876 -1926 (The Macmillan company, 1920)

An elementary text-book of the microscope; including a description of the methods of preparing and mounting objects, etc - Griffith, J. W. (John William) (J. Van Voorst, 1864)

Elementary text-book of zoology - Claus, Carl, 1835 -1899 (W. Swan Sonnenschein, 1885)

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, 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)

The elements of animal biology - Holmes, Samuel J. (Samuel Jackson), 1868 -1964 (P. Blakiston's son & co, 1919)

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

Elements of plant biology - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (Allen, 1922)

Elements of plant biology - Tansley, A. G., Sir, (Arthur George), 1871 -1955 (George Allen & Unwin ltd, 1922)

Elements of zoology: for schools and science classes - Harbison, M. (G. P. Putnam's sons, 1873)

Elements of zoölogy : a textbook - Tenney, Sanborn, 1827 -1877 (Scribner, 1875)

The English flora - Smith, James Edward, 1759 -1828 (Longman, Hurst, Rees, Orme, Brown, and Green, 1824)

Entomologia Parisiensis; sive, Catalogus insectorum quae in agro Parisiensi reperiuntur - Fourcroy, Antoine-François de, comte, 1755 -1809 (1785)

The Entomologist - Royal Entomological Society of London (Simpkin, Marshall & Co, 1910)

The entomologist's record and journal of variation - Tutt, James William, 1858 -1911 (s.n, 1896)

The entomologist's record and journal of variation - Tutt, James William, 1858 -1911 (s.n, 1952)

The entomologist's record and journal of variation - Tutt, James William, 1858 -1911 (s.n, 1964)

Enzyme cytology - Roodyn, D.B., (Academic Press, 1967)

Ergebnisse der in dem Atlantischen Ocean von Mitte Juli bis Anfang November 1889 ausgeführten Plankton-Expedition der Humboldt-Stiftung. Auf Frund von gemeinschaftlichen Untersuchungen einer Reihe von Fach-Forschern - Hensen, Victor, 1835 -1924 (Lipsius & Tischer, 1892)

Ergebnisse und Fortschritte der Zoologie (G. Fischer, 1924)

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)

Estestvennai︠a︡ istorii︠a︡ nalivochnykh zhivotnykh : i sostavlennai︠a︡ preimushchestvenno iz nabli︠u︡deniǐ Ėrenberga / S. Kutorga - Kutorga, S. (Stepan), 1805? -1861 (1839)

Etudes sur les infusoires d'eau douce - Penard, Eugène, 1855 -1954 (Georg, 1922)

Études sur les infusoires et les rhizopodes - Claparède, René-Édouard, 1832 -1871 (H. Georg, 1868)

Etudes sur les infusoires et les rhizopodes - Claparède, René-Édouard, 1832 -1871 (Kessmann, 1860)

Evenings at the microscope - Gosse, Philip Henry, 1810 -1888 (P.F. Collier, 1859)

Evenings at the microscope - Gosse, Philip Henry, 1810 -1888 (P.F. Collier, 1901)

Evenings at the microscope : or, Researches among the minuter organs and forms of animal life - Gosse, Philip Henry, 1810 -1888 (Society for Promoting Christian Knowledge, 1877)

Evenings at the microscope : or, researches among the minuter organs and forms of animal life - Gosse, Philip Henry, 1810 -1888 (D. Appleton, 1860)