Home › Authors › John Thomas Howell 👤 John Thomas Howell 3 books Biography American botanist Books by John Thomas Howell Leaflets of Western Botany Leaflets of Western Botany 2018 A Systematic Study Of The Genu A Systematic Study Of The Genus Lessingia Cham 1929 The World We Have Lost-England The World We Have Lost-England Before The Industrial Age