Description: Field Entomologists' correspondence filed by John J. Davis, assistant state entomologist in Chicago (1908-11), and Wesley P. INT, assistant state entomologist in Springfield (1914-19) , relating to crops , weather, spraying for insects, identification of plant diseases and insects, inspection of nursery stock, chinch bug egg parasites, army works, and Hessian flies, publications, travel and state fair.
The file includes Davis' letterpress copybook of outgoing correspondence for April 10, 1909 to April 3, 1911.