Environmentalists & Naturalists

I Married a Ranger

In Brightest Africa

Heroes of To-Day

The Garden Underground

Life's Enthusiasms

The Other “Hermit” of Thoreau’s Walden Pond

Water and Light

Wildlife Wars

Of Man and Beast

The Autobiography of Charles Darwin

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