1. Departments of Physiology, Anatomy, and Microbiology, and Division of Tropical Medicine, College of Physicians and Surgeons, Columbia University, New York, N.Y. 10031, and Division of Immunohematology, Montefiore Medical Center and Albert Einstein College of Medicine, New York, N.Y. 10467.
2. Columbia University. College of Physicians and Surgeons, New York. N. Y. 10032.
3. Columbia University. College of Physician.s and Surgeons. New York. N. Y. 10032.
4. Columbia University, College of Physicians and Surgeons, New York, N. Y. 10032.
5. Malaria Section. Laboratory of Parasitic Diseases. National Institutes of Health Bethesda. Md. 20014.
6. Department of Microbiology. Louisiana State University Medical Center. New Orleans. La. 70112.
7. Columbia University. College of Physicians and Surgeons. New York. N.Y 10032
8. Montefiore Hospital and Medical Center, Bronx, N. Y. 10467, Associate Professor of Medicine, Albert Einstein College of Medicine, Bronx. N Y. 10461