Cosmos : a sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (Bell & Daldy, 1871)

Cosmos : sketch of a physical description of the universe - Humboldt, Alexander von, 1769 -1859 (Printed for Longman, Brown, Green, and Longmans ... and John Murray, 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 (H.G. Bohn, 1849)

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, 1866)

Cosmos: a survey of the general physical history of the universe - Humboldt, Alexander von, 1769 -1859 (Harper & Brothers, 1845)

The Cottage gardener (W.S. Orr, 1853)

The Coues check list of North American birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1882)

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)

A course of lectures on natural philosophy and the mechanical arts - Young, Thomas, 1773 -1829 (Printed for J. Johnson, 1807)

Cruise of the "Alert" : four years in Patagonian, Polynesian, and Mascarene waters. (1878-82) - Coppinger, R. W. (Richard William) (Worthington, 1884)

Cunninghamia: A journal of plant ecology for eastern Australia - National Herbarium of New South Wales, (Royal Botanic Gardens, National Herbarium of New South Wales, 2005)

Cuvier's Animal kingdom : arranged according to its organization, forming the basis for a natural history of animals, and an introduction to comparative anatomy : illustrated by three hundred engravings on wood - Blyth, Edward, 1810 -1873 (W.S. Orr and Co, 1840)

The cyclopaedia of anatomy and physiology - Owen, Richard, 1804 -1892 (Sherwood, Gilbert, & Piper, 1836)

The cyclopaedia of anatomy and physiology - Todd, Robert Bentley, 1809 -1860 (Longman, Brown, Green, Longmans, & Roberts, 1852)

The cyclopædia; or, Universal dictionary of arts, sciences, and literature - Rees, Abraham, 1743 -1825 (Longman, Hurst, Rees, Orme & Brown [etc.], 1819)

Cyclopedia of farm animals - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1922)

Da ema ao beija-flor vida e costumes das aves do Brasil - Santos, Eurico (F. Briguiet, 1938)

Danmarks fauna; illustrerede haandbøger over den danske dyreverden... - Dansk naturhistorisk forening. (G.E.C. Gad, 1919)

Danmarks fugle, beskrevne - Kjaerbølling, N. (Niels), 1806 -1871 (Forfatterens Forlag, 1852)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1913)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1914)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1916)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1917)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1922)

Dansk ornithologisk forenings tidsskrift - Dansk ornitologisk forening. (Den Forening, 1923)

de han lin ye ming ci - Beijing lin xue yuan. 北京林学院 (ke xue chu ban she, 1958)

De l'espèce et des races dans les êtres organisés et spécialement de l'unité de l'espèce humaine - Godron, M. (Dominique Alexandre), 1807 -1880 (J.B. Baillière et Fils, 1859)