Insektenbörse (Alfred Kernen, 1919)

Insektenbörse (Alfred Kernen, 1920)

Insektenbörse (Alfred Kernen, 1921)

Insektenbörse (Alfred Kernen, 1922)

Insektenbörse (Alfred Kernen, 1923)

Die insel Cypern, ihrer Physischen und Organischen Natur nach mit Rücksicht auf ihre frühere Geschichte - Unger, F. (Franz), 1800 -1870 (W. Braumüller, 1916)

Instructions for appraising stumpage on national forests. Rev. April 10, 1922 - United States. Forest Service. (Govt. print. off, 1922)

The Intellectual observer (Groombridge and Sons, 1865)

The international bibliography of electron microscopy - New York Society of Electron Microscopists. (1959)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1905)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1902)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1913)

International catalogue of scientific literature. M, Botany - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1903)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1904)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1905)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1906)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1901)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1907)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1908)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1909)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1910)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1911)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1912)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1913)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1914)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1915)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1916)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1918)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1919)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1920)

International catalogue of scientific literature - Royal Society (Great Britain) (Published for the International Council by the Royal Society of London, 1921)

International catalogue of scientific literature [Sect.] M. Botany : 1st -14th annual issues, 1901-1914 (Published for the International Council by the Royal Society of London, 1905)

Internationale entomologische Zeitschrift - Internationales Entomologen-Bund. (Internationaler Entomologischer Verein E.V, 1913)

Internationale entomologische Zeitschrift - Internationales Entomologen-Bund. (Internationaler Entomologischer Verein E.V, 1914)

The intestinal protozoa of man - Dobell, Clifford, 1886 -1949 (Wood, 1921)

An introduction to animal morphology and systematic zoology - Macalister, Alexander, 1844 -1919 (Longmans, 1876)

An introduction to animal morphology and systematic zoology : pt. I. Invertebrata - Macalister, Alexander, 1844 -1919 (Longmans, Green, 1876)

Introduction to fresh-water algae with an enumeration of all the British species - Cooke, M. C. (Mordecai Cubitt), 1825 -1914 (K. Paul, Trench, Trübner & Co., ltd, 1890)

Introduction to plant geography and some related sciences - Polunin, Nicholas (McGraw-Hill, 1960)

An introduction to the study of the comparative anatomy of animals - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (Bell, 1909)

An introduction to the study of the comparative anatomy of animals - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (Bell, 1900)

An introduction to the study of the comparative anatomy of animals - Bourne, Gilbert C. (Gilbert Charles), 1861 -1933 (G. Bell & sons, 1900)

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

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