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

Catálogo de los objetos remitidos por los Estados de la Federación, Distrito Federal, territorios de la República Mexicana y por particulares para la Exposición Mexicana en Paris (Oficina Tip. de la Secretaría de Fomento, 1889)

Catalogo de los moluscos terrestres y de agua dulce observado en España y descripcion y notas de algunas especies nuevas o poco conocidas del mismo pais - Graells, Mariano de la Paz, 1809 -1898 (Libreria de Los Señores Viuda é Hijos de Don Antonia Callerja, 1846)

Catalogue des arbres, arbrisseaux, arbustes et plantes vivaces, cultivés en pleine terre à Baleine [sic], près Moulins, département d'Allier - Adanson, Aglaé, 1775 -1852 (Audot, libraire, rue des Mäcons-Sorbonne, no. 10, 1825)

Catalogue of North American plants north of Mexico, exclusive of the lower cryptogams - Heller, Amos Arthur, 1867 -1944 (A.A. Heller], 1900)

Catalogue of North American plants north of Mexico, exclusive of the lower cryptogams - Heller, Amos Arthur, 1867 -1944 (1900)

Catalogue of North American plants north of Mexico, exclusive of the lower cryptogams - Heller, Amos Arthur, 1867 -1944 (s.n.], 1900)

Catalogue of plants collected in Nevada, Utah, Colorado, New Mexico, and Arizona, with descriptions of those not contained in Gray's Manual of the Northern U.S., and vol. V, Geological Exploration of the Fortieth Parallel - Rothrock, Joseph T., 1839 -1922 (1878)

Catalogue of plants collected in the years 1871, 1872 and 1873 :with descriptions of new species - Watson, Sereno, 1826 -1892 (G.P.O, 1847)

A catalogue of plants growing without cultivation within thirty miles of Amherst college - Tuckerman, Edward, 1817 -1886 (E. Nelson, 1875)

Catalogue of recently described Coccidæ IV - United States. Office of Experiment Stations. (Government Printing Office, 1912)

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

A catalogue of the Coccidæ of the world - Fernald, Maria E. Mrs., (Elizabeth Smith), 1839 -1919 (Carpenter & Morehouse, 1903)

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 herbarium of the late Dr. Charles C. Parry of Davenport, Iowa - Iowa State University. Herbarium. (Printed by H.N. Patterson, 1891)

Catalogue of the library of the Arnold Arboretum of Harvard University - Sargent, Charles Sprague, 1841 -1927 (Printed at the Cosmos Press, 1914)

Catalogue of the phaenogamous and vascular cryptogamous plants of North America (exclusive of Mexico) - Oyster, John Houck, 1849 - (Miami Republican Book and Job Printing House, 1885)

Catalogue of the plants of Los Angeles County - Davidson, Anstruther, 1860 -1932 (B.R. Baumgardt, 1896)

Catalogue of the plants of Los Angeles County. Pt. I Phaenogamia - Davidson, Anstruther, 1860 -1932 (B. R. Baumgardt, 1896)

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 Horti regii parisiensis cum annotationibus de plantis novis aut minus cognitis - Desfontaines, René Louiche, 1750 -1833 (J. S. Chaudé, 1829)

Catalogus plantarum vascularium Chilensium - Philippi, Federico, 1838 -1910 (Imprenta Nacional, 1881)

Catalogus plantarum vascularium chilensium adhuc descriptarum - Philippi, Federico, (Imprenta Nacional, 1881)

C.C. Parry and John Torrey correspondence, 1846-1868 - Parry, C. C. (Charles Christopher), 1823 -1890

C.E. Hobb's botanical hand-book of common local, English, botanical and pharmacopoeial names arranged in alphabetical order, of most of the crude vegetable drugs, etc., in common use : especially designed as a reference book for druggists and apothecaries - Hobbs, Charles E. (Printed by C.C. Roberts, 1876)

C.E. Hobbs' Botanical hand-book : of common local, English, botanical and pharmacopœial names arranged in alphabetical order, of most of the crude vegetable drugs, etc., in common use : their properties, productions and uses in an abbreviated form : especially designed as a reference book for druggists and apothecaries - Hobbs, Charles E. (Printed by C.C. Roberts, 1876)

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)

Chamber's encyclopaedia, a dictionary of universal knowledge (Chambers, 1902)

Characteres essentiales familiarum ac tribuum regni vegetabilis et amphorganici ad leges tetractydis naturae conscripti accedit enumeratio generum magis notorum et organographiae supplementum - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis K. Wienöberianis, 1847)

Check-list of North American plants : including Mexican species which approach the U. S. boundary - Patterson, Harry N. (Harry Norton), 1853 -1919 (Patterson, 1887)

Checklist of the armored scales (Homoptera: Diaspididae) of the conterminous United States - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1982)

Checklist of the vascular plants of the intermountain region - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1966)

Las chlorideas de la República Argentina : (trabajo del Laboratorio de Botánica de la Facultad de Agronomía y Veterinaria) - Universidad de Buenos Aires. Facultad de Agronomía y Veterinaria. (Imprenta y casa Editora Coni, 1919)

Class book of botany : being an introduction to the study of the vegetable kingdom - Balfour, John Hutton, 1808 -1884 (Adam and Charles Black, 1854)

Classification, phylogeny and biogeography of the Euxoa detersa group (Lepidoptera: Noctuidae) - Lafontaine, J. Donald (1980)

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)

The coal measures Amphibia of North America - Moodie, Roy Lee, 1880 -1934 (Carnegie Institution of Washington, 1916)

The Coccidae - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab company, 1921)

The Coccidae, tables for the identification of the subfamilies and some of the more important genera and species, together with discussions of their anatomy and life history - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab Company, 1921)

The Coccidae, tables for the identification of the subfamilies and some of the more important genera and species, together with discussions of their anatomy and life history - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab, 1921)

Codes to the INTREDIS register system for literature retrieval in forest pathology - Southeastern Forest Experiment Station (Asheville, N.C.) (U.S. Forest Service. Southeastern Forest Experiment Station, 1965)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1972)

Collection number book, numbers 8658-10709 - Fosberg, F. Raymond (Francis Raymond), 1908 -1993 (1931)

Companion to the Botanical magazine :being a journal, containing such interesting botanical information as does not come within the prescribed limits of the magazine; with occasional figures - Hooker, William Jackson, Sir, 1785 -1865 (Printed by E. Conchman ... for the proprietor, S. Curtis, 1835)

Comparative nesting biology of the bee tribe Exomalopsini (Apoidea, Anthophoridae) - Rozen, Jerome G. Jr. (Jerome George), 1928 - (American Museum of Natural History, 1984)

Compositae of southern California - Hall, Harvey Monroe, 1874 -1932 (The University Press, 1907)

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, 1868)

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, 1874)

The condor - Cooper Ornithological Club. (Cooper Ornithological Club, 1907)

Congrès international d'entomologie : [proceedings] (Hayez, 1988)

Congrès international d'entomologie : [proceedings] (Hayez, 1996)

Congrès international d'entomologie : [proceedings] (Hayez, 2000)

Conspectus regni vegetabilis per gradus naturales evoluti. Tentamen - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (apud C. Cnobloch, 1828)

Contract and general trade list of "Merit" flower seeds : crop of 1945 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1945)

Contribuciones a la materia médica argentina - Domínguez, Juan A. (Juan Aníbal), 1876 -1946 (Talleres s. a. Casa J. Peuser, 1928)

A contribution to the knowledge of the Coccidae of southwestern United States - Ferris, Gordon Floyd, 1893 -1958 (The University, 1919)

Contributions from the Botanical Laboratory - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. ([s.n, 1934)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1963)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1977)

Contributions from the Herbarium of Columbia College - Columbia College (New York, N.Y.). Herbarium. (Columbia College, 1886)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1891)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1893)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1909)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1912)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1915)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1957)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1969)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1982)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1964)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1970)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1976)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1986)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1990)

Contributions to systematic bryology : dedicated to Lewis E. Anderson - Anderson, Lewis E. (Lewis Edward), 1912 -2007 (Missouri Botanical Garden, 1985)