An introduction to geology : and its associate sciences mineralogy, fossil botany, and palaeontology - Wright, Thomas, 1809 -1884 (H. G. Bohn, 1855)

An introduction to the classification of animals - Huxley, Thomas Henry, 1825 -1895 (J. Churchill & sons, 1869)

Introduction to the study of biology - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood and sons, 1872)

Introduction to the study of biology - Nicholson, Henry Alleyne, 1844 -1899 (Appleton, 1872)

An introduction to the study of botany - Smith, James Edward, 1759 -1828 (Longman, Rees, Orme, Brown, Green, and Longman, 1833)

An introduction to the study of cytology, by L. Doncaster ... - Doncaster, L. (Leonard), 1877 -1920 (University Press, 1920)

An introduction to the study of cytology - Doncaster, L. (Leonard), 1877 -1920 (University Press, 1920)

An introduction to the study of embryology - Haddon, Alfred C. (Alfred Cort), 1855 -1940 (Griffin, 1887)

An introduction to the study of embryology - Haddon, Alfred C. (Alfred Cort), 1855 -1940 (P. Blakiston, 1887)

An introduction to the study of recent corals - Hickson, Sydney J. (Sydney John), 1859 -1940 (The University press, 1924)

An introduction to the study of the comparative anatomy of animals - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (G. Bell & sons, 1902)

An introduction to the study of the comparative anatomy of animals - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (G. Bell & sons, 1919)

Introduction to the study of zoölogy, for use in high schools and academies - Harvey, Nathan Albert, 1860 - (Western Publishing House, 1901)

An introduction to the study of zoology - Lindsay, B. (S. Sonnenschein, 1895)

An introduction to the systematic zoology and morphology of vertebrate animals - Macalister, Alexander, 1844 -1919 (Hodges, Foster and Figgis, 1878)

An introduction to zoology - Hegner, Robert William, 1880 -1942 (The Macmillan company, 1910)

An introduction to zoology - Gosse, Philip Henry, 1810 -1888 (Printed for the Society for promoting Christian knowledge, 1844)

Introduction to zoology... - Patterson, Robert, 1802 -1872 (Simms and MIntyre, 1854)

An introduction to zoology, for the use of High schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark, 1889)

An introduction to zoology for the use of high schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark, 1889)

An introduction to zoology : for the use of high schools - Wright, R. Ramsay (Robert Ramsay), 1852 -1933 (Copp, Clark Co, 1889)

Introduction to zoology, for the use of schools - Patterson, Robert, 1802 -1872 (Simms and M'Intyre, A. Chambers, 1848)

Introduction to zoology : for the use of schools - Patterson, Robert, 1802 -1872 (Simms and M'Intyre, 1848)

Introduction to zoology; a guide to the study of animals, for the use of secondary schools - Davenport, Charles Benedict, 1866 -1944 (Macmillan company, 1900)

The Invertebrata; a manual for the use of students - Borradaile, L. A. (Lancelot Alexander), 1872 -1945 (Macmillan, 1932)

The Invertebrata; a manual for the use of students - Borradaile, L. A. (Lancelot Alexander), 1872 -1945 (Macmillan, 1935)

The invertebrate fauna of the Firth of Forth - Herdman, W. A. Sir, (William Abbott), 1858 -1924 (Printed by M'Farlane & Erskine, 1881)

Invertebrate zoology - Van Cleave, Harley Jones, 1886 -1953 (McGraw-Hill Book Company, Inc, 1931)

Iohannis Henrici Linckii... De stellis marinis liber singvlaris. tabvlararvm aenearvm figvras exemplis nativis apprime similes et avtoris observationes disposvit et illvstravit Christian Gabriel Fischer ... accedvnt Edw. Lvidii, de Reavmvr, et Dav. Kade hvivs argvmenti opvscvla - Réaumur, René-Antoine Ferchault de, 1683 -1757 (apvd Iacobvm Schvstervm, 1733)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1896)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1907)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1910)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1912)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1913)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1914)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1915)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1924)

Isagoge in botanicam expeditiorem : iconibus aeri incisis et pictis illustrata - Schäffer, Jacob Christian, 1718 -1790 (Litteris Fratr. Zunkel, 1759)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1817)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1825)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1828)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1829)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1831)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1835)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1836)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1838)