Environmental Protection

The Silent Places

Roof and Meadow

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

The Crest of the Continent: A Summer's Ramble in the Rocky Mountains and Beyond

In the Open: Intimate Studies and Appreciations of Nature

Canadian Wilds

Cruise of the Revenue-Steamer Corwin in Alaska and the N.W. Arctic Ocean in 1881: Botanical Notes

Bird Stories from Burroughs

The Country Beyond

The Gamekeeper at Home

Creatures of the Night: A Book of Wild Life in Western Britain

Prose Idylls, New and Old

Fur Farming

The Green God's Pavilion

Natural History of the Bell Vireo, Vireo bellii Audubon

American Big Game in Its Haunts: The Book of the Boone and Crockett Club

Descriptions of Two Species of Frogs, Genus Ptychohyla

The Land of Little Rain

A Northern Countryside

The Peak District