sentences:  He was a founder of the first textile mill to be owned and operated by African Americans.Barringer was professor of therapeutics and pharmacology at UVA from 1903 to 1907, when he accepted the presidency at Virginia Agricultural and Mechanical College and Polytechnic Institute (V.P.I., now Virginia Tech) at age 50.During Barringer's administration at V.P.I., entrance requirements were increased; a Farmer's Winter Course was established; summer school was expanded; and Agricultural Hall (now known as Price Hall) was completed.