105 books
Rock Gases (1890)
The Story of Our Continent; A Reader in the Geography and Geology of North America
Man and the Earth
Nature and Man in America
The Island Of Campobello
Outlines of the Earth S History
Outlines of the Earth's History
Domesticated Animals, Their Relation to Man and to His Advancement in Civilization
The Period and Utilization of Old Age and Immortality