Harry Hazelton Knight letter to Hortense Butler Heywood telling about his nursery for rearing the Perillus bioculatus bug that is predacious to the potato beetle.
Emmeline Moore, Vassar College, Department of Biology letter to Hortense Butler. Emmeline is writing about her dorm room, furnishings and adjustment to Vassar College. She mentions that the Bureau of Fisheries will be publishing her paper.
Detailed drawing of wing of a hypothetical arrangement of trachea in wing of primitive insect. Includes veins of the wing identified by letters and numbers.
Detailed drawing of the wing of Braconid-Helcon. Includes veins of the wing identified by letters and numbers. Second image appears to be of back side of the photograph and includes annotations.
Postcard from Emmeline Moore, Churchville, New York to Hortense Butler. She comments on how empty the lab is becoming as her colleagues are leaving and writes of her own feelings about leaving Ithaca.
Letter from Emmeline Moore, The Circle, Ithaca, New York to Hortense Butler. Emmeline writes about her work and the latest news of her colleagues. Includes envelope. On the back of the envelope is a note about Alice and concern for the letter getting lost in the mail.
