Comparative anatomy - Siebold, C. Th. E. von (Carl Theodor Ernst), 1804 -1885 (Trubner, 1854)

Comparative anatomy and physiology - Bell, F. J. (Francis Jeffrey), 1855 -1924 (Cassell, 1885)

Comparative anatomy and physiology - Bell, F. J. (Francis Jeffrey), 1855 -1924 (Lea Brothers, 1885)

Comparative zoology - Orton, James, 1830 -1877 (Harper & brothers, 1894)

Comparative zoology, structural and systematic : for use in schools and colleges - Orton, James, 1830 -1877 (Harper & Brothers, 1889)

Comparative zoology : structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper, 1895)

Comparative zoology, structural and systematic : for use in schools and colleges - Orton, James, 1830 -1877 (Harper & Bros, 1883)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper & brothers, 1884)

Comparative zoology, structural and systematic. For use in schools and colleges - Orton, James, 1830 -1877 (Harper and brothers, 1880)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (American book company, 1904)

Comparative zoology, structural and systematic, for use in schools and colleges - Orton, James, 1830 -1877 (Harper & brothers, 1893)

Compendium der vergleichenden Anatomie : zum Gebrauche für Studierende der Medizin - Rawitz, Bernhard, 1857 - (Hartung, 1893)

The complete writings of Thomas Say, on the conchology of the United States - Binney, W. G. (William Greene), 1833 -1909 (H. Bailliere, 1858)

The complete writings of Thomas Say, on the conchology of the United States - Binney, W. G. (William Greene), 1833 -1909 (H. Baillière, 1858)

Comptes rendus hebdomadaires des séances et mémoires de la Société de biologie - Société de biologie (Paris, France) (G. Masson, 1898)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1848)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1897)

The Congo Expedition of the American Museum of Natural History - Osborn, Henry Fairfield, 1857 -1935 (American Museum of Natural History, 1919)

Contribution to Indiana palaeontology - Green, George K. (Ewing & Zeller, 1904)

A contribution to the Lower Devonian faunas of Maryland - Ohern, Daniel Webster, 1870 - (Johns Hopkins Press, 1913)

Contributions - Brown University. Biological Laboratory (1898)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 2018)

Contributions to a biological survey of Santa Monica Bay, California - Los Angeles (Calif.). Dept. of Geology. (1956)

Contributions to British palæontology : or, First descriptions of three hundred and sixty species and several genera of fossil Radiata, Articulata, Mollusca, and Pisces from the Tertiary, Cretaceous, Oolitic, and Palæozoic strata of Great Britain - McCoy, Frederick, 1817 -1899 (Macmillan, 1854)

Contributions to Canadian biology - Biological Board of Canada. (Biological Board of Canada, 1917)

Contributions to Canadian biology and fisheries - Biological Board of Canada. (1901)

Contributions to Canadian biology : being studies from the Marine Biological Station of Canada - Biological Board of Canada. (s.n.], 1917)

Contributions to Canadian palæontology - Geological Survey of Canada (Printed by S. E. Dawson, 1885)

Contributions to embryology - Carnegie Institution of Washington

Contributions to the natural history of the United States of North America vol. 1, part 1 - Agassiz, Louis, 1807 -1873 ([s.n.])

Contributions to the natural history of the United States of America - Agassiz, Louis, 1807 -1873 (Little, Brown and Company, 1857)

Correlation papers : Cambrian - Walcott, Charles D. (Charles Doolittle), 1850 -1927 (Govt. Print. Off, 1891)

Correspondenz-blatt des Zoologisch-mineralogischen Vereins in Regensburg - Zoologisch-Mineralogischer Verein (Regensburg, Germany) (Zoologisch-mineralogischer Verein, 1851)

Cosmos : a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (H.G. Bohn, 1849)

Cosmos : a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (Harper & Brothers, 1877)

Cosmos : a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (Harper & Brothers, 1850)

Cosmos : a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (G. Bell, 1892)

Cosmos: a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (Harper & Brothers, 1866)

Cosmos: a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (H.G. Bohn, 1849)

The cottage gardener, country gentleman's companion and poultry chronicle (G.W. Johnson, 1860)

Country rambles, and Manchester walks and wild flowers: being rural wanderings in Cheshire, Lancashire, Derbyshire, & Yorkshire - Grindon, Leo H. (Leo Hartley), 1818 -1904 (Palmer & Howe, 1882)

County reports and maps] Lewis and Gilmer Counties - West Virginia Geological; Economic Survey. (Wheeling news litho. co, 1916)

Cours élémentaire de paléontologie et de géologie stratigraphiques - Orbigny, Alcide Dessalines d', 1802 -1857 (V. Masson, 1849)

A course in invertebrate zoölogy; a guide to the dissection and comparative study of invertebrate animals - Pratt, Henry Sherring, 1859 - (Ginn and Company, 1915)

A course in invertebrate zoology : a guide to the dissection and comparative study of invertebrate animals - Pratt, Henry Sherring, 1859 - (Ginn, 1915)

A course in invertebrate zoölogy; a guide to the dissection and comparative study of invertebrate animals - Pratt, Henry Sherring, 1859 - (Ginn & Company, 1902)

Die craspedoten Medusen der Siboga-Expedition - Maas, Otto, 1867 -1916 (Buchhandlung und druckerei vormals E.J. Brill, 1905)

The Cretaceous rocks of Britain - Jukes-Browne, A. J. (Alfred John), 1851 -1914 (Printed for H. M. Stationery off., by Wyman and sons, limited, 1904)

The Crinoidea flexibilia : (with an atlas of A., B., C., and 76 plates) - Springer, Frank, 1848 -1927 (Smithsonian Institution, 1920)