ABSTRACT
When in 1923 Wickliffe Rose resigned from the directorship of the International Health Board to assume the presidency of the General Education Board and of the newly created International Education Board, the lines of development in the Foundation's health work had been firmly established. Rose was succeeded by Colonel Frederick F. Russell, who had been in charge of the Division of Laboratories and Infectious Disease of the Surgeon General's Office of the United States Army. Frederick F. Russell had scientific experience and judgment, and he was at home in a laboratory; Rose was a philosopher with brilliant administrative gifts and a hard core of practical sense. It was natural that while the outlines of the program of the International Health Board remained much the same, certain emphases should be shifted. A health problem in Egypt is schistosomiasis, a disease caused by the liver fluke, a small organism carried by certain species of snails living in the canals of irrigated lands.
