Freud (front row, fourth from right) at Clark University, Worcester, Massachusetts, September 1909, where he presented a series of lectures that introduced psychoanalysis to America. Also shown in the photograph are, front row: Franz Boas (far left), William James (third from left), Carl Jung (third from right); second row: Ernest Jones (fourth from right), A.A. Brill (third from right); third row: Sandor Ferenczi (fifth from right).
			Sigmund Freud at Clark University, Worcester, Massachusetts, September 1909. Sigmund Freud Collection, Prints and Photographs Division, Library of Congress. Photo: Library of Congress/Courtesy of A.W. Freud et al.