Complex sentence: In 1883, he joined the Department of Botany and Zoology at the State College of Agriculture (now Kansas State University) in Manhattan, and in 1891 he became professor of botany at Ohio State University.
Split into simpler sentences: In 1883, he joined the Department of Botany and Zoology at the Kansas State College of Agriculture (now Kansas State University) in Manhattan. In 1891 he became professor of botany at Ohio State University.