Environmental Protection

The Grizzly, Our Greatest Wild Animal

Lobo, Rag and Vixen

Mississippi River Tragedies

In the Open: Intimate Studies and Appreciations of Nature

Runaway Planet

Bird Stories from Burroughs

Wanderings in South America

Fresh Fields

God's Country: The Trail to Happiness

The Spell of the Rockies

The Amateur Poacher

The Eulogy of Richard Jefferies

Underground Treasures: How and Where to Find Them

Nature and Culture

Burton Island State Park: Guide to the Interpretive Nature Trail and Hiking Trail

The Geology of Groton State Forest

Wild Life at the Land's End

American Big-Game Hunting: The Book of the Boone and Crockett Club

The Migration of North American Birds

Krag and Johnny Bear