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Start Over You searched for: Author Entomology Bureau Remove constraint Author: Entomology Bureau Catalog Issue Year Decade 1920 - 1929 Remove constraint Catalog Issue Year Decade: 1920 - 1929

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31. Bedbug; [by] C. L. Marlatt.

34. Bees. Bees; [by E. F. Phillips]

35. Bees. Swarm control; [by Geo. S. Demuth].

40. Carbon disulfide as insecticide; [by W. E. Hinds].