In Schistosoma mansoni infections in Saudi Arabia a cure was obtained in 6 out of 12 cases with lucanthone hydrochloride (Nilodin) in dosages of 55 to 75 mg./kg. body weight, and in 12 out of 18 cases with sodium antimonyl gluconate (Triostam) in dosages of 13 to 21.6 mg./kg. body weight. In S. haematobium infections, one case was cured with 110 mg./kg. of lucanthone hydrochloride and 4 out of 4 cases were cured with 20 to 24 mg./kg. of sodium antimonyl gluconate.
The author wishes to thank Dr. R. C. Page, Medical Director, Arabian American Oil Company, for permission to publish this paper.