At about the same time, he was appointed professor of chemistry in Western Reserve College (then situated at Hudson, Ohio and later moved to Cleveland and renamed Case Western Reserve University), where he remained until his retirement in 1906.
Ve stejné době byl jmenován profesorem chemie na Western Reserve College (nacházející se v Hudsonu v Ohio a později přestěhované do Clevelandu a přejmenované na Case Western Reserve University), kde zůstal až do svého odchodu do penze v roce 1906.