This volume is an annual publication which summarizes the investigations of this organization during the current year. It is primarily of interest to those who are concerned with cancer research. The progress of each investigation is described and the original articles arising from such work are carefully tabulated. The organization paid grants of more than half a million dollars during 1938, and between 35 and 50 per cent of the funds were allotted outside the United States in accordance with its by-laws. The funds are used for experimentation and not for building or equipment, although the foundation can accept gifts or contributions for the latter items. The organization was founded in Philadelphia June 8, 1932, and since that time has been responsible for much investigation into the causes, prevention, control, relief and cure of "those diseases... commonly called cancer."