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

Contributions of the American Entomological Institute - American Entomological Institute. (American Entomological Institute], 1984)

Contributions to an insect fauna of the Amazon Valley : Coleoptera–Longicornes : Part I. Lamiares - Bates, Henry Walter, 1825 -1892 (Taylor and Francis, 1861)

Contributions to the flora of Beaver County, from the Mansfield Herbarium, 1865-1903 - Mansfield, Ira Franklin, 1942 - (Tribune Printing, 1903)

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)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1958)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1960)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1961)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1962)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1963)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1964)

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, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1969)

Correspondenz-blatt des Zoologisch-mineralogischen Vereins in Regensburg - Zoologisch-Mineralogischer Verein (Regensburg, Germany) (Zoologisch-mineralogischer Verein, 1847)

The Cottage gardener (W.S. Orr, 1850)

Country rambles in England; or, Journal of a naturalist - Knapp, J. L. (John Leonard), 1767 -1845 (Phinney & Co, 1853)

Country rambles in England; or, journal of a naturalist - Knapp, J. L. (John Leonard), 1767 -1845 (Phinney, 1853)

Cranberries; : the national cranberry magazine (Taylor Pub. Co. [etc.], 1945)

Crop protection research - United States. Agricultural Research Service. (U.S. Dept. of Agriculture, Science and Education Administration, Agricultural Research, 1982)

The crow and its relation to man - Kalmbach, E. R. (Edwin Richard), 1884 -1972 (U.S. Dept. of Agriculture, 1918)

Culture methods for invertebrate animals - Galtsoff, Paul S. (Paul Simon), 1887 -1979 (Dover Publications, 1959)

Cunninghamia: A journal of plant ecology for eastern Australia - National Herbarium of New South Wales, (Royal Botanic Gardens, National Herbarium of New South Wales, 2019)

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 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)

Dai-ikkai zenkoku konchu tenrankai shuppin mokuroku - Nawa, Yasushi, 1857 -1926 (Nawa Konchu Kenkyujo, 1902)

Dainippon gaichu zensho - Matsumura, Shōnen 1872 -1960 (Rokumeikan, 1915)

Danmarks fauna; illustrerede haandbøger over den danske dyreverden... - Dansk naturhistorisk forening. (G.E.C. Gad, 1921)

Danmarks fauna; illustrerede haandbøger over den danske dyreverden... - Dansk naturhistorisk forening. (G.E.C. Gad, 1966)

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)

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, 1878)

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, 1883)

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, 1907)

Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena - Medizinisch-naturwissenschaftliche Gesellschaft zu Jena. (Fischer, 1879)

Denkschriften der Medicinisch-Naturwissenschaftlichen Gesellschaft zu Jena - Medizinisch-naturwissenschaftliche Gesellschaft zu Jena. (Fischer, 1909)

The dependence of agriculture on the beekeeping industry - : a review - United States. Office of Experiment Stations. ([U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine, Division of Bee Culture], 1946)

The dependence of agriculture on the beekeeping industry - : a review - United States. Office of Experiment Stations. ([U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine, Division of Bee Culture], 1942)

Descriptions of new species of Hymenoptera in the collection of the British museum - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1879)