By C. B. VAN GAASBEEK, Lieutenant, Medical Corps, United States Navy.In this report of the results of the treatment of leprosy in the Virgin Islands with the ethyl ester derivatives of chaulmoogra oil no claim is made for originality. All credit for the results obtained is due to Doctors McDonald and Dean and their coworkers in Hawaii, who first instituted this method of treatment at the Kalihi Hospital in Honolulu, and whose preparation of the oil we used and whose technic we followed.Excerpted from U.S. Naval Medical Bulletin 18;1, January 1923.