7 books
Lectures on Sex and Heredity, Delivered in Glasgow, 1917-18
A Course of Practical Instruction in Botany
Comparative Anatomy of the Vegetative Organs of the Phanerogams and Ferns
Plant-Life on Land Considered in Some of Its Biological Aspects
The Ferns (Filicales) Treated Comparatively with a View to Their Natural Classification
Botany of the Living Plant
The Origin of a Land Flora, a Theory Based Upon the Facts of Alternation