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Rh the treatment of his phthisis would probably have been most unsatisfactory with active malaria parasites present in the blood.)

Case 5. F. K., 39, from Trinidad. Admitted, 17th September 1906. After leaving Trinidad on the tenth day at 10 A.M. he was suddenly taken ill on deck with severe pain in the head and dropped down unconscious. Regained consciousness at 7 and had a rigor. Temperature rose to 106°, and until admission had been quotidian remittent. Liver and spleen only just palpable. No history of previous malaria. Blood examined and benign tertian parasites found. Complete cure.

Case 6. H. B., 26, from Alabama. Admitted, 5th December 1896, for the passage of blood by the rectum and mouth, and a nightly rigor. Had an attack of malaria some few months before but was quite cured from that. Liver and spleen just palpable. Blood showed pigmented malaria parasites, and condition was completely cured by the use of quinine.

Case 7. J. F., 36, from west coast of Africa. Admitted, 12th April 1897. At work in the stokehole, and had sudden onset of pain in