On animal and vegetable parasites of the human body, a manual of their natural history, diagnosis, and treatment - Küchenmeister, Friedrich, 1821 -1890 (Printed for the Sydenham Society, 1857)

On animal and vegetable parasites of the human body, a manual of their natural history, diagnosis, and treatment - Küchenmeister, Friedrich, 1821 -1890 (Printed for the Sydenham society, 1857)

On growth and form - Thompson, D'Arcy Wentworth, 1860 -1948 (University Press, 1945)

On human entozoa : comprising the description of the different species of worms found in the intestines and other parts of the human body, and the pathology and treatment of the various affections produced by their presence : to which is added a glossary of the principal terms employed - Royal College of Physicians of Edinburgh. (H.K. Lewis, 1863)

On human entozoa: comprising the description of the different species of worms found in the intestines and other parts of the human body, and the pathology and treatment of the various affections produced by their presence - Smith, William Abbotts. (H. K. Lewis, 1863)

On parthenogenesis - Owen, Richard, 1804 -1892 (John Van Voorst, 1849)

On parthenogenesis, or The successive production of procreating indivduals from a single ovum. A discourse introductory to the Hunterian lectures on generation and development, for the year 1849, delivered at the Royal college of surgeons of England - Owen, Richard, 1804 -1892 (J. Van Voorst, 1849)

On tape and cystic worms : with an introduction on the origin of intestinal worms - Huxley, Thomas Henry, 1825 -1895 (Sydenham Society, 1857)

On the anatomy of vertebrates - Owen, Richard, 1804 -1892 (Longmans, Green, 1866)

On the anatomy of vertebrates ... - Owen, Richard, 1804 -1892 (Longmans, Green and Co, 1866)

On the deep and shallow water marine fauna of the Kerguelen Region of the Great Southern Ocean - Murray, John, Sir, 1841 -1914 (Robert Grant & Son, 1896)

On the existence of glycogen in the tissues of certain entozoa - Foster, M. Sir, (Michael), 1836 -1907 ([publisher not identified], 1865)

On the impregnation of the ovum in the Amphibia ... (First series ... second series, rev.) And on the direct agency of the spermatozoon - Newport, George 1803 -1854 (1851)

On the power, wisdom and goodness of God, as manifested in the creation of animals, and in their history, habits and instincts - Kirby, William, 1759 -1850 (Carey, Lea & Blanchard, 1836)

On the prevalence of entozoa in the dog, with remarks on their relation to public health - Linnean Society of London. ([s.n.])

On the role of insects, arachnids and myriapods, as carriers in the spread of bacterial and parasitic diseases of man and animals. A critical and historical study - Austen, E. E. (Ernest Edward), 1867 -1938 (J. & A. Churchill, 1900)

Ontogenese als Regeneration betrachtet ; mit 6 textfiguren - Rauber, A. (August), 1841 -1917 (Druck von C. Mattiesen, 1908)

Opalina : its anatomy and reproduction, with a decription of infection experiments and a chronological review of the literature - Metcalf, Maynard M. (Maynard Mayo), 1868 -1940 (G. Fischer, 1909)

Theophrasti Eresii De historia plantarum libri decem, Graece : cum syllabo generum et specierum, glossario, et notis - Theophrastus. (S. Collingwood, 1813)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1958)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1956)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1957)

Opinions and declarations rendered by the International Commission on Zoological Nomenclature - International Commission on Zoological Nomenclature (Printed by order of the International Trust for Zoological Nomenclature, 1939)

Organisation, systematik und geographisches verhältniss der infusionsthierchen. Zwei vorträge, in der Akademie der wissenschaften zu Berlin gehalten in den jahren 1828 und 1830 - Ehrenberg, Christian Gottfried, 1795 -1876 (Druckerei der Königlichen akademie der wissenschaften, 1830)

The organization and cell-lineage of the ascidian egg - Conklin, Edwin Grant, 1863 -1952 ([Academy of Natural Sciences], 1905)

The origin and development of the nervous system, from a physiological viewpoint - Child, Charles Manning, 1869 -1954 (The University of Chicago press, 1921)

The origin of life and process of reproduction in plants and animals : with the anatomy and physiology of the human generative system, male and female, and the causes, prevention and cure of the special diseases to which it is liable : a plain, practical treatise, for popular use - Hollick, Frederick, 1818 -1900 (David McKay, 1902)

The origin of life on the earth - Oparin, Aleksandr Ivanovich, 1894 -1980 (Academic Press, 1957)

Ornis - International Ornithological Committee. (Carl Gerold's Sohn, 1890)

Ornithologische Monatsberichte (Verlag von R. Friedländer & Sohn, 1916)

Ornithologisches Jahrbuch (V. Tschusi, 1892)

Die österreichische Polarstation Jan Mayen, ausgerüstet durch Graf Hanns Wilczek, geleitet vom Emil Edlen von Wohlgemuth. Beobachtungs-Ergebnisse, hrsg. von der Kaiserlichen Akademie der Wissenschaften - International Polar Expedition 1882 -1883 (In Commission bei K. Gerold's Sohn, 1886)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1905)

Our country's shells and how to know them : a guide to the British mollusca - Gordon, W. J. (Simpkin, Marshall, Hamilton, Kent & Co, 1901)

Our domestic animals in health and disease - Gamgee, John, 1831 -1894 (Maclachlan & Stewart, 1871)

Our living world; an artistic edition of the Rev. J. G. Wood's Natural history of animate creation - Wood, J. G. (John George), 1827 -1889 (S. Hess, 1885)

Our veterinary adviser; the best method of treating diseases of horses, cattle, sheep and hogs - Northwestern medicine co., Keokuk, Iowa. (The Northwestern medicine co, 1907)

An outline of developmental physiology - Raven, Chr. P. (Chr. Pieter), 1906 - (McGraw-Hill, 1954)

Outline of genetics : with special reference to plant material - Coulter, Merle C. (Merle Crowe), 1894 -1958 (University of Chicago Press, 1923)

An outline of the natural history of our shores - Sinel, Joseph. (S. Sonnenschein, 1906)

An outline of the natural history of our shores - Sinel, Joseph. (Swan Sonnenschein & Co, 1906)

Outlines of clinical diagnostics of the internal diseases of domestic animals - Malkmus, Bernhard, 1859 -1925 (A. Eger, 1901)

Outlines of clinical diagnostics of the internal diseases of domestic animals - Fischer, Paul, 1906 - (Eger, 1909)

Outlines of comparative anatomy and medical zoology - Allen, Harrison, 1841 -1897 (Lippincott, 1874)

Outlines of comparative anatomy and medical zoology - Allen, Harrison, 1841 -1897 (J.B. Lippincott & co, 1869)

Outlines of comparative anatomy : intended principally for the use of students - Fyfe, Andrew, 1754 -1824 (Printed by J. Pillans & sons for Adam Black, South Bridge Street, 1813)

Outlines of comparative anatomy intended principally for the use of students - Fyfe, Andrew, 1754 -1824 (Printed by J. Pillans & Sons for Adam Black ... [etc.], 1818)

Outlines of creation - Noyce, Elisha. (Ward & Lock, 1858)

Outlines of economic zoölogy - Reese, A. M. (Albert Moore), 1872 -1965 (P. Blakiston's Son & Co, 1919)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (Constable, 1912)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (D. Appleton and company, 1912)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (D. Appleton and company, 1914)