 He traveled to Europe and studied at the University of Leipzig, where he received his Ph.D. in 1884.He then spent another year in the study of Semitic languages at the Sorbonne, the Collège de France and the École des Langues Orientales Levant Vivantes.On his return to the United States in 1885, he was appointed assistant to his father in Philadelphia, which position he voluntarily resigned after one year.