- The Arctic Problem: And Narrative of the Peary Relief Expedition of the Academy of Natural Sciences of Philadelphia
- The Arctic Problem: And Narrative of the Peary Relief Expedition of the Academy of Natural Sciences of Philadelphia
- The Animal Life of Our Seashore
- Mont Pel�e and the Tragedy of Martinique; a Study of the Great Catastrophes of 1902, With Observations and Experiences in the Field
- The Earth and Its Story; a First Book of Geology;