Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1931)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1925)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1943)

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, 1968)

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

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

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1966)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1993)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1985)

Contributions of the American Entomological Institute - American Entomological Institute. (American Entomological Institute], 1983)

Contributions to the flora of Iowa; a catalogue of the phaenogamous plants - Arthur, Joseph Charles, 1850 -1942 ("Intelligencer" Book Print, 1876)

Contributions to the flora of Iowa; a catalogue of the phaenogamous plants - Arthur, Joseph Charles, 1850 -1942 (Intelligencer Book Print, 1876)

Contributions to western botany.no. 1-18 - Jones, Marcus E. (Marcus Eugene), 1852 -1934 (1912)

Cook & Chadwick's illustrated catalogue of hardy bulbs and floral guide - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cook & Chadwick's, 1869)

Cook's descriptive catalogue of plants, trees, shrubs, vines, climbers, etc., cultivated and for sale at the Walnut Hills Nurseries and Exotic Gardens, Madison Road, adjoining City Limits, Cincinnati, O - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. ([J. S. Cook, 1868)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1965)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1966)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Coos County natural gas pipeline : draft environmental impact statement - Coos County (Or.). Board of Commissioners. (U.S. Department of the Interior, Bureau of Land Managment, Coos Bay District, 2001)

Coos County natural gas pipeline : final environmental impact statement - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, Coos Bay District, 2002)

Cordage fibres: their cultivation, extraction and prepartaion for market - Carter, Herbert R. (J. Bale, Sons & Danielsson, limited, 1909)

The Cottage gardener (W.S. Orr, 1849)

Cotton and other vegetable fibres: their production and utilization - Goulding, Ernest, 1870 - (Murray, 1919)

Cours complet d'agriculture théorique, pratique, économique, et de médecine rurale et vétérinaire , suivi d'une méthode pour étudier l'agriculture par principes ; ou Dictionnaire universel d'agriculture - Rozier, François, 1734 -1793 (1785)

Cours d'horticulture - Poiteau, Pierre-Antoine, 1766 -1854 (Mme Ve Bouchard-Huzard, 1848)

Cours élémentaire de botanique et flore du Canada à l'usage des maisons d'éducation - Moyen, J. (Jean), 1828 -1899 (G.E. Desbarats, 1871)

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

Cox's seed annual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Cox Seed and Plant Co, 1886)

Crosman Brothers' garden and farm annual : 1910 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Crosman Bros, 1910)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1983)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1984)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1987)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1988)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1994)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1996)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1997)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1998)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1999)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2000)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2001)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2002)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2003)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2011)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2013)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2022)

Crustacea Malacostraca. I-IV - Hansen, H. J. (Hans Jacob), 1855 -1936 (Printed by Bianco Luno, 1908)

C.S. Rafinesque and John Torrey correspondence, 1819-1840 - Rafinesque, C. S. (Constantine Samuel), 1783 -1840 (1830)