Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

Catalogue = Catalog. Museum Godeffroy, Hamburg - Museum Godeffroy. (W. Mauke Söhne, L. Friedrichsen, 1869)

Catalogue of British fossorial Hymenoptera, Formicidæ, and Vespidæ, in the collection of the British museum - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1858)

Catalogue of hymenopterous insects in the collection of the British museum... - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1858)

Catalogue of insects found in New Jersey - Smith, John Bernhard, 1858 -1912 (John L. Murphy, 1890)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1896)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1902)

Catalogue of the flowering plants and gymnosperms of Peru = Catálogo de las angiospermas y gimnospermas del Perú - Brako, Lois, 1950 - (Missouri Botanical Garden, 1993)

Catalogue of the vascular plants of Ecuador = Catálogo de las plantas vasculares del Ecuador - González, Amada Pedroni. (Missouri Botanical Garden Press, 1999)

Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (G. Engelmann, 1894)

Catalogus plantarum cubensium exhibens collectionem Wrightianam aliasque minores ex insula Cuba missas - Grisebach, A. (August), 1814 -1879 (Apud Gulielmum Engelmann, 1866)

The cave fauna of North America, with remarks on the anatomy of the brain and origin of the blind species - Packard, A. S. (Alpheus Spring), 1839 -1905 (National Academy of Sciences, 1888)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

The century supplement to the dictionary of gardening, a practical and scientific encyclopaedia of horticulture for gardeners and botanists - Nicholson, George, 1847 -1908 (Geo. T. King, 1901)

Check-list of the insects of Connecticut - Britton, Wilton Everett, 1868 -1939 (Printed for the State Geological and Natural History Survey, 1920)

Check-list of the insects of Connecticut - Britton, Wilton Everett, 1868 -1939 (State Geological and Natural History Survey, 1920)

A check list of the vascular plants of Nicaragua : based largely on collections in Nicaragua made by the author and companions, 1968-1976 - Seymour, Frank Conkling. (H.N. Moldenke and A.L. Moldenke, 1980)

Checklist of CITES Species (1998)

Checklist of CITES Species and Annotated CITES Appendices and Reservations - Inskipp, Tim (CITES Secretariat, UNEP-WCMC, 2005)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2003)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2001)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (1996)

Chronique orchidéenne :supplément mensuel au Dictionnaire iconographique des orchidées - Cogniaux, Alfred, 1841 -1916 (A. Goossens, 1897)

A classified index and synopsis of The animal kingdom arranged in conformity with its organization - Gray, John Edward, 1800 -1875 (Printed for Whittaker and Co, 1835)

Clavis, classium, ordinum et familiarum atque index generum regni vegetabilis = Diagnostische Uebersichtstafeln des natürlichen Pflanzensystems : nebst vollständigem Gattungsregister - Perleb, Karl Julius, 1794 -1845 (A. Emmerling, 1838)

Collected papers on ants - Wheeler, William Morton, 1865 -1937 (1905)

Compte-rendu des séances du Troisième congrès international de zoologie : Leyden - 16-21 Septembre - l895 (E.J. Brill, 1895)

Comptes-rendus des séances de la Société entomologique de Belgique - Société entomologique de Belgique. (La Société, 1886)

Congrès international d'entomologie : [proceedings] (Hayez, 1938)

Congrès international d'entomologie : [proceedings] (Hayez, 1910)

Congrès international d'entomologie : [proceedings] (Hayez, 1984)

Considérations générales sur l'ordre naturel des animaux composant les classes des crustacès, des arachnides, et des insectes; avec un tableau méthodique de leurs genres, disposés en familles - Latreille, P. A. (Pierre André), 1762 -1833 (F. Schoell, 1810)

Contribución a la entomología cubana - Gundlach, Johannes Christoph, 1810 -1896 (G. Montiel, 1886)

Contribution à l'étude de la faune des microcavernes.–Faune des terriers et des nids ... - Falcoz, Louis. (A. Rey, 1914)

Contributions du Jardin botanique de Rio de Janeiro - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (L'Etoile du Sud, 1907)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1906)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2007)

Curious facts in the history of insects; including spiders and scorpions. A complete collection of the legends, superstitions, beliefs, and ominous signs connected with insects; together with their uses in medicine, art, and as food; and a summary of their remarkable injuries and appearances - Cowan, Frank, 1844 -1905 (J.B. Lippincott & Co, 1865)

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 cyclopædia of India and of Eastern and Southern Asia : commercial, industrial and scientific, products of the mineral, vegetable, and animal kingdoms, useful arts and manufactures - Balfour, Edward, 1813 -1889 (B. Quaritch, 1885)

Cyclopedia of American horticulture : comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan company, 1909)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches, and a synopsis of the vegetable kingdom - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Doubleday, Page & Company, 1906)

Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches - Bailey, L. H. (Liberty Hyde), 1858 -1954 (Macmillan, 1900)

Danmarks fauna; illustrerede haandbøger over den danske dyreverden... - Dansk naturhistorisk forening. (G.E.C. Gad, 1943)

Datos para la zoologia medica mexicann : Aráenidos é insectos - Mexico. Ministerio de fomento, colonizacion e industria. (Oficina tip. de la Secretaria de fomento, 1893)

De Benguella ás terras de Iácca; descripção de uma viagem na Africa central e occidental. Comprehendendo narrações, aventuras, e estudos importantes sobre as cabeceiras dos rios Cu-nene, Cu-bango, Lu-ando, Cu-anza e Cu-ango, e de grande parte do curso dos dois ultimos; alem da descoberta dos rios Hamba, Cauali, Sussa e Cu-gho, e larga noticia sobre as terras de Quiteca, N'bungo, Sosso, Futa, e Iácca - Capelo, H. (Hermenegildo), 1841 -1917 (Imprensa nacional, 1881)

De insectorum systemate naturali ... - Burmeister, Hermann, 1807 -1892 (typis Grunertorum patris filiique, 1829)

De insectorum systemate naturali : dissertatio inauguralis quam consensu facultatis medicae Halensis ut doctoris utriusque medicinae gradum rite adipiscatur die IV. Novembris MDCCCXXIX. publice defendet - Burmeister, Hermann, 1807 -1892 (Typis Grunertorum patris filiique, 1829)

Delectus animalium articulatorum : quae in itinere per Brasiliam, annis MDCCXVII-MDCCCXX : jussu et auspiciis Maximiliani Josephi I ... - Martius, Karl Friedrich Philipp von, 1794 -1868 (Impensis Editoris, 1830)

Denkschriften der Kaiserlichen Akademie der Wissenschaften / Mathematisch-Naturwissenschaftliche Classe - Kaiserl. Akademie der Wissenschaften in Wien. Mathematisch-Naturwissenschaftliche Klasse. (Aus der Kaiserlich-Königlichen Hof- und Staatsdruckerei, 1923)

Deutsche entomologische Zeitschrift - Deutsche Entomologische Gesellschaft. (Nicolai'sche Verlags-Buchandlung, 1909)