The Online Books Page

Books by H. H. Walkden:

Books in the extended shelves:

• Walkden, H. H. (Herbert Halden), 1893-: An air-pressure tank for the pneumatic application of liquid fumigants (U.S. Department of Agriculture, Bureau of Entomology and Plant Quarantine, 1943), also by H. J. Barre and United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Concentrations of methyl bromide lethal to insects in grain : laboratory studies of sorption rates and effects of concentrations on rice weevil and confused flour beetle (U.S. Dept. of Agriculture, Agricultural Marketing Service, Market Quality Research Division, 1961), also by W. Keith Whitney (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Control of the pale western cutworm in the southern Great Plains region (U.S. Dept. of Agriculture, 1940), also by United States. Bureau of Entomology and Plant Quarantine (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: The effects of cathode-ray irradiation on the rice weevil in wheat (Market Quality Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1962), also by N. M. Dennis and L. H. Soderholm (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Effects of high-frequency electric fields on certain species of stored-grain insects (Market Quality Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1961), also by W. Keith Whitney and Stuart D. Nelson (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Evaluation of lindane for the protection of stored wheat and shelled corn from insect attack (Marketing Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1958), also by Howard D. Nelson (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Evaluation of methoxychlor for the protection of stored wheat and shelled corn from insect attack (Marketing Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1958), also by Howard D. Nelson (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Evaluation of ryania for the protection of stored wheat and shelled corn from insect attack (Marketing Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1958), also by Howard D. Nelson (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Evaluation of synergized pyrethrum for the protection of stored wheat and shelled corn from insect attack (Marketing Research Division, Agricultural Marketing Service, U.S. Dept. of Agriculture, 1959), also by Howard D. Nelson (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Grain sorghum storage (U.S. Dept. of Agriculture, 1947), also by C. K. Shedd (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Hessian fly control in Nebraska (University of Nebraska, College of Agriculture, Agricultural Experiment Station, 1944), also by J. R. Horton and F. M. Wadley (page images at HathiTrust)
• Walkden, H. H. (Herbert Halden), 1893-: Owlet moths (Phalaenidae) taken at light traps in Kansas and Nebraska (U.S. Dept. of Agriculture, 1942), also by Don B. Whelan and United States Department of Agriculture (page images at HathiTrust)

Find more by H. H. Walkden at your library, or elsewhere.