Essig, E.O. 1931 . A History of Entomology. MacMillan New York 1029 pp.

Notes: Covers prehistoric entomology, California Indians in relation to entomology, principal institutions in California featuring entomology, orchard mites and insects of California, biological control of insect pests, insecticides, entomological legislation and biography; chronological table shows development and progress of entomology in relation to history and other sciences; index shows references to 21 mealybug and 97 scale species.