Title: Bats, mosquitoes and dollars
Description: Bats, Mosquitoes and Dollars. Dragonflies. Bedbugs and Smallpox. Eradication of Smallpox by other means than vaccination, by Dr. Jo A. Wells. Function of the Spleen.
Subjects: Bats, Bedbugs, Control, Dragonflies, Mosquitoes, Prevention, Smallpox, Spleen, Chiroptera