- Charles Darwin and the Theory of Natural Selection
- A Naturalist in Borneo
- An Enquiry Into The Cause And Extent Of A Special Color Relation Between Certain Exposed Lepidopterous Pupoe
- The Structure Of The Bill And Hairs Of Ornithorhychus Paradoxus: With A Discussion Of The Homologies And Origin Of Mammalian Hair
- A remarkable American work upon evolution and the germ theory of disease. Addresses delivered at the anniversary meetings of the Linnean society of ... 24th of May, 1913, and the 25th of May, 1914