Environmental Protection

In Brightest Africa

Hold Your Water

A Thousand-Mile Walk to the Gulf (With Original Drawings & Photographs)

Good hunting; in pursuit of big game in the West

Practical Forestry in the Pacific Northwest

A Natural State

Nature's Tapestry: Uncovering the Beauty and Importance of Biodiversity

King Sequoia

The Earth Remains Forever

The New 50 Simple Things Kids Can Do to Save the Earth

Paths of the Mound-Building Indians and Great Game Animals

The Forest of Dean: An Historical and Descriptive Account

Among the Birds in Northern Shires

Grand Teton [Wyoming] National Park

The Bird Watcher in the Shetlands, with Some Notes on Seals—and Digressions

A Rough Ride to the Future

The Lazy Environmentalist on a Budget

Inside the Onion

The Story of Big Bend National Park

The Environmental Behaviour of Uranium