Environmentalists & Naturalists

Water and Light

Wildlife Wars

Of Man and Beast

Josephine E. Butler: An Autobiographical Memoir

The Life & Legacy of Henry David Thoreau

Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History

Ada Lovelace: The Mother of Computing

Rheticus

Michelangelo and the Popes

The Autobiography of Charles Darwin

Our Friend John Burroughs

Our Farm of Four Acres and the Money we Made by it

“Great-Heart”

On Grandfather's Farm