00995cam a22002411 4500 agr41000354 DLC 20260227111000.0 780110s1940 enk b f000 0 eng c agr41000354 U.S. Dept. of agr. Library WMaUCS WMaUCS DLC 423G7942 Imperial Institute (Great Britain). Plant and Animal Products Department. A survey of insecticide materials of vegetable origin, edited by H. J. Holman. Issued under the auspices of the Consultative Committee on Insecticide Materials of Vegetable Origin. London, 1940. viii, 155 p. 25 cm. At head of title: Imperial Institute. Plant and Animal Products Dept. Published by the Institute under its earlier name: Imperial institute. "Bibliography": p. 141-153. Insecticides. Holman, Henry John. Insecticide materials of vegetable origin. 10117 10117