1. Unit on Human Malaria, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, and the Penitentiary Hospital (Federal Bureau of Prisons), USPHS, Atlanta, Ga. 30315
2. Unit on Human Malaria, US Penitentiary
3. US Penitentiary
4. Section on Primate Malaria, P.O. Box 80190, Chamblee, Ga. 30341