The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1993)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1996)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1997)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1998)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2000)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2003)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2006)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2007)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2018)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

Die Caprellidae der Siboga-expedition - Mayer, Paul, 1848 -1923 (Buchhandlung und druckerei vormals E. J. Brill, 1903)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1915)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1921)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1922)

Carotenoids - Jucker, Ernst, 1918 - (Elsevier Pub. Co, 1950)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell, Petter & Galpin, 1876)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1896)

Cassell's natural history - Duncan, P. Martin (Peter Martin), 1821 -1891 (Cassell & Company, Limited, 1891)

Catalog and indexes to the microscopic slide collection of the Boston Society of Natural History (1854-1885) at the Farlow Herbarium - Boston Society of Natural History. (printed and distributed by Farlow Herbarium and Library, Harvard University, 1981)

Catalog of Recent type specimens in the Department of Invertebrates, American Museum of Natural History. 3, "Parasitica" (phyla Platyhleminthes, Rhombozoa, and Pentastomida) and Gastrotricha (supplement) - Boyko, Christopher B. (American Museum of Natural History, 1996)

Catalogue de la bibliothèque - Bohnensieg, G. C. W. (Georg Carl Wilhelm), 1828 - (Héritiers Loosjes, 1885)

Catalogue of accessioned publications. Supplement - World Data Center A–Oceanography. (World Data Center A, 1989)

Catalogue of British Hymenoptera of the family Chalcididæ - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1910)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1914)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1916)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1908)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1921)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1903)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1904)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1910)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1913)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1915)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1922)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1933)

Catalogue of the books, manuscripts, maps and drawings in the British museum (Natural history) .... - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1940)

A catalogue of the British non-parasitical worms in the collection of the British Museum - Johnston, George, 1797 -1855 (Printed by order of the Trustees, 1865)

Catalogue of the British species of pisidium (recent & fossil) in the collections of the British Museum (Natural History), with notes on those of western Europe - Woodward, Bernard Barham, 1853 -1930 (Printed by order of the Trustees, 1913)

Catalogue of the Chaetopoda in the British Museum (Natural History) - Ashworth, James Hartley, 1874 -1936 (Printed by Order of the Trustees of the British Museum, 1912)

Catalogue of the Chaetopoda in the British Museum (Natural History). By J.H. Ashworth - Ashworth, James Hartley, 1874 -1936 (Printed by Order of the Trustees of the British Museum, 1912)

Catalogue of the Lepidoptera Phalænæ in the British museum - British Museum (Natural History). Department of Zoology. (Printed by Order of the Trustees, 1913)

Catalogue of the Lepidoptera Phalænæ in the British museum - British Museum (Natural History). Department of Zoology. (Printed by Order of the Trustees, 1914)

Catalogue of the library - Zoological Society of London. (Taylor & Francis, 1902)

Catalogue of the library of the Linnean Society of London - Linnean Society of London. Library. (The Society's Apartments, Burlington House [etc.], 1896)

Catalogue of the library of the Zoological Society of London - Waterhouse, Frederick Herschel, 1845 -1919 (Taylor and Francis, 1902)

Catalogue of the Machaeridia (Turrilepas and its allies) in the Department of Geology - Withers, Thomas Henry (1926)

Catalogue of the Mesozoic plants in the Department of Geology, British Museum (Natural History) - Seward, A. C. (Albert Charles), 1863 -1941 (Trustees of the B.M, 1904)

Catalogus der bibliotheek. Eerste vervolg. (1 Januari 1907- 1 juli 1914) - Nederlandse dierkundige vere niging. Bibliotheek, Helder. (1914)

The causes and course of organic evolution - Macfarlane, John Muirhead, 1855 -1943 (The Macmillan Company, 1918)

The cell in development and heredity - Wilson, Edmund B. (Edmund Beecher), 1856 -1939 (The Macmillan Co, 1928)

Centralblatt für Physiologie - Physiologische Gesellschaft zu Berlin. (Toeplitz & Deuticke, 1895)

Die chitonen der Siboga-expedition - Nierstrasz, H.F. (Hugo Frederik), 1872 -1937 (E. J. Brill, 1905)

Circular / U.S. Fish and Wildlife Service - U.S. Fish; Wildlife Service (U.S. G.P.O.,, 1967)

The Cirripedia of the Siboga-expedition - Hoek, P. P. C. (Paulus Peronius Cato), 1851 -1914 (E. J. Brill, 1907)

The Cirripedia of the Siboga-expedition - Hoek, P. P. C. (Paulus Peronius Cato), 1851 -1914 (E. J. Brill, 1913)

A classification of living animals - Rothschild, Nathaniel Mayer Victor Rothschild, Baron, 1910 -1990 (Wiley, 1961)