1. Standen, O. D., Trans. Roy. Soc. Trop. Med. Hyg., 49, 416 (1955).
2. Newsome, J., Trans. Roy. Soc. Trop. Med. Hyg., 47, 428 (1953).
3. Pringle, G., E. African Inst. Malaria and Vector-borne Dis. Ann. Rep., 14 (1961).
4. Laveran, A., and Mesnil, F., Ann. Inst. Pasteur, 15, 693 (1901).
5. Mesnil, F., and Brimont, E., Ann. Inst. Pasteur, 23, 129 (1909).