5 books
The Principles of Plant Culture; A Text for Beginners in Agriculture and Horticulture
The October 1963 Eruption of Kilauea Volcano, Hawaii
Patent Office and Patent Laws, Or, a Guide to Inventors and a Book of Reference for Judges, Lawyers, Magistrates and Others; With Appendices
Patent Office and Patent Laws
Photographic Atlas of the Mid-Atlantic Ridge Rift Valley