Pioneers of plant study

By Ellison Hawks, F.R.A.S., author of „Pioneers of wireless,“ „Romance and reality of astronomy,“ „Water in nature“. This book was originally planned, and some parts of it written, in collaboration with the late G. S. Boulger, F.L.S., F.G.S., Late Lecturer of Botany, City of London College, and author of „Familiar trees,“ „Flowers of the field,“ „Plant geography,“ etc.