First lessons with plants; being an abridgement of “Lessons with plants: suggestions for seeing and interpreting some of the common forms of vegetation”; Q Science
The nature-study idea : an interpretation of the new school-movement to put the young into relation and sympathy with nature Q Science
Woody plants of the western national parks; containing keys for the identification of trees and shrubs Q Science
Catalogue of North American reptiles in the Museum of the Smithsonian institution. Part I.–Serpents Q Science
