The Online Books Page

Books by R. V. Connin:

Books in the extended shelves:

• Connin, R. V. (Richard V.), 1921-: Grasshoppers : their habits and damage (U.S. Dept. of Agriculture :, 1964), also by J. R. Parker (page images at HathiTrust)
• Connin, R. V. (Richard V.), 1921-: Investigations of sprays for control of the European corn borer, Toledo, Ohio, 1945-1946 (U.S. Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1948), also by D. D. Questel and United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
• Connin, R. V. (Richard V.), 1921-: Laboratory tests on toxicity of some phenylhydrazides to the European corn borer (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1949), also by S. I. Gertler, D. D. Questel, and United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
• Connin, R. V. (Richard V.), 1921-: The toxic or repellent action to the European corn borer of corn plants grown in soil treated with various compounds (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1949), also by D. D. Questel, S. I. Gertler, and United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)

Find more by R. V. Connin at your library, or elsewhere.