sentences:  Between 1887 and 1888, he served as a Vice President of the American Surgical Association.In 1890, he became professor of practical and clinical surgery and surgical pathology at Rush Medical College, progressing to head of the department of surgery in 1891.In 1890, 1897, 1903 and 1906, he was a delegate to the International Medical Congress at Berlin, Moscow, Madrid and Lisbon.