The Strange Adventures of a Pebble

Madam How and Lady Why; Or, First Lessons in Earth Lore for Children

Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place

Thoughts on a Pebble, or, A First Lesson in Geology

Peter Parley's Wonders of the Earth, Sea, and Sky

The puzzle of life and how it has been put together