1905 - , Lehre am Tugers College, New Jersey, 1928/29, an der Univ. North Carolina, 1929/30 u. American Univ, Washington, 1932/33
1905 - , Lehre am Tugers College, New Jersey, 1928/29, an der Univ. North Carolina, 1929/30 u. American Univ, Washington, 1932/33