Natural history
The Log of the Sun_ A Chronicle of Nature's Year
A Child's Primer of Natural History
Adventures of a Young Naturalist
Birds, Illustrated by Color Photography, Vol. 1, No. 5
May, 1897
Edge of the Jungle
Birds, Illustrated by Color Photography, Vol. 1, No. 4
April, 1897
Rollo's Museum
Rollo's Experiments
Die Philippinen und ihre Bewohner
Sechs Skizzen
