Environmental Protection

Revisiting the Earth

The Heart of the Red Firs

Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas

Literary Pilgrimages of a Naturalist

Nestlings

The Heart of the Wild: Nature Studies from Near and Far

The Book of the Otter: A manual for sportsmen and naturalists

God's Country: The Trail to Happiness

The Nation's River: A report on the Potomac

Under Blue Skies: Verses & Pictures

Bamboo, Considered as a Paper-making Material

What the Blackbird said

The Wonderful World of Thornton Burgess

Last Leaves from Dunk Island

The White Heart of Mojave: An Adventure with the Outdoors of the Desert

Our Vanishing Wild Life: Its Extermination and Preservation

The Child's Book of Nature

The Peak District

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

The Land of Little Rain