An introduction to the study of fossils (plants and animals) - Shimer, Hervey Woodburn, 1872 -1965 (The Macmillan Company, 1914)

An introduction to the study of fossils (plants and animals) - Shimer, Hervey Woodburn, 1872 -1965 (The Macmillan Co, 1921)

Introduction to the study of palæontological botany - Balfour, John Hutton, 1808 -1884 (Adam and Charles Black, 1872)

An introduction to the study of zoology : by T. H. Huxley, F. R. S. ; with eighty-two illustrations - Huxley, Thomas Henry, 1825 -1895 (D. Appleton, 1910)

An introduction to the study of zoology, illustrated by the crayfish - Huxley, Thomas Henry, 1825 -1895 (Appleton, 1895)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (J. & A. Churchill, 1907)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (P. Blakiston, 1907)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (J. & A. Churchill, 1911)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (J. & A. Churchill, 1900)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (Blakiston's, 1911)

An introduction to vegetable physiology - Green, J. Reynolds (Joseph Reynolds), 1848 -1914 (P. Blakiston's Son & Co, 1907)

An introduction to vegetable physiology, with references to the works of De Candolle, Lindley, etc (W. Pickering, 1845)

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

Inventaire des plantes phanérogames et cryptogames vasculaires croissant spontanément ou cultivées en grand dans le département de l'Orne - Letacq, Arthur Louis, 1855 -1923 (Jules Lecerf, 1906)

The invertebrate fauna of the inland waters of Scotland. Pt. IV - Scott, Thomas, 1840 -1929 (Fisheries Board, 1894)

The invertebrate fauna of the inland waters of Scotland, part II - Scott, Thomas, 1840 -1929 (Fisheries Board, 1891)

An investigation into the use of biological agents for the control of aquatic plant growth in irrigation systems in Alberta - Allen, E. Ashley Dale. (Research Management Division, Alberta Environment, 1987)

Investigations in fish control - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1964)

Investigations in fish control - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1975)

Investigations on microscopic foams and on protoplasm; experiments and observations directed towards a solution of the question of the physical conditions of the phenomena of life - Bütschli, Otto, 1848 -1920 (Black, 1894)

Investigations on microscopic foams and on protoplasm. Experiments & observations directed towards a solution of the question of the physical conditions of the phenomena of life - Bütschli, Otto, 1848 -1920 (A. and C. Black, 1894)

The invisible world revealed by the microscope ; or, thoughts on animalcules - Mantell, Gideon Algernon, 1790 -1852 (J. Murray, 1850)

The invisible world revealed by the microscope ; or, Thoughts on animalcules - Mantell, Gideon Algernon, 1790 -1852 (J. Murray, 1850)

Ioan Henrici Alstedii Scientiarum omnium encyclopædiæ : tomus primus [-quartus] ... - Alsted, Johann Heinrich, 1588 -1638 (Sumptibus Ioannis Antonii Huguetan Filij, & Marci Antonii Ravaud, viâ Mercatoriâ ad insigne Sphæræ, 1649)

Ioannis Antonii Scopoli ... Flora Carniolica : exhibens plantas Carnioliae indigenas et distributas in classes, genera, species, varietates, ordine Linnaeano - Scopoli, Giovanni Antonio, 1723 -1788 (Impensis Ioannis Pauli Krauss, bibliopolae Vindobonensis, 1772)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1893)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1894)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1895)

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

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1898)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1899)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1901)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1903)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1904)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1905)

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, 1917)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1918)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1920)

The Irish naturalist - Royal Zoological Society of Ireland. (Eason & Son, Ltd, 1922)

The Irrigation age - American Irrigation Federation. (D.H. Anderson Pub. Co, 1891)

Isis - Académie internationale d'histoire des sciences (1913)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1818)

Isis, oder, Encyclopädische Zeitung von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1819)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1820)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1821)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1822)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1823)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1824)

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

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1826)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1827)

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, 1830)

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

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1832)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1833)

Isis von Oken - Oken, Lorenz, 1779 -1851 (Expedition der Isis, 1834)

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

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