Ecosystems & Habitats

My Home in the Alps

Forest, Lake and Prairie

In Lakeland Dells and Fells

Forest Trees and Forest Scenery

The prey of the strongest

The Book of the Ocean

Forest, Rock, and Stream

Natural History: Mollusca

Devils Tower National Monument

Two Ways of Becoming a Hunter

Tales of a Vanishing River

The Spell of the Rockies

The Lapland

The Clammer and the Submarine

My First Summer in the Sierra (With Original Drawings & Photographs)

The Confessions of a Beachcomber

Wild Earth

The Rocky Mountain Wonderland

The Arctic Prairies : a Canoe-Journey of 2,000 Miles in Search of the Caribou

Swell