The third annual Eastern United States Theoretical Physics Conference was held at the University of Maryland in College Park on October 30 and 31, 1964. The first and second conferences were held at the University of Virginia and the University of North Carolina, respectively. In two years the attendance more than doubled, with 269 participants at the most recent meeting. This may be a crude measure of the scientific value of such a conference, but it does seem to be an established success.