The value of carbon tetrachlorid in the treatment of hookworm disease in dogs was first noted by Hall.1He found that 0.3 c.c. of the drug for every kilogram of body weight sufficed to expel all the hookworms without subsequent purgation—a result that he had not been able to achieve with any other anthelmintic. Tests of the drug made in combination with thymol and with chenopodium produced equally favorable results. Monkeys, swine and horses were also treated, and postmortem examinations performed on these animals, months later, revealed no pathologic changes in the organs which could be attributed to carbon tetrachlorid. Dr. Hall himself took 3 c.c. of the drug without ill effect. In view of the interesting results obtained by Hall, the Bureau of Ankylostomiasis of the Medical Department of the Colony of Fiji undertook to study the value of carbon tetrachlorid in the treatment of hookworm disease in