101. E (series). 790. Preliminary tests of synthetic organic compounds as insecticides, pt. 6; by G. T. Bottger, A. P. Yerington, and S. I. Gertler. Bookmark Corporate/Agency Authors: Entomology and Plant Quarantine Bureau and Agriculture Dept. Publisher: Entomology and Plant Quarantine Bureau Date: Nov. 1949 SuDoc number: A 77.312:E-(nos.)