He became professor of transportation and commerce at the University of Pennsylvania in 1896 , and was dean of its Wharton School from 1919 to 1933 .
He was instructor of economics at Haverford College 1893 - 96 .
instructor became professor of transportation and commerce at the University of Pennsylvania in 1896 , and was dean of its Wharton School from 1919 to 1933 .
He was instructor of economics at Haverford College 1893 - 96 .