Ecosystems & Habitats

The Lapland

The Spell of the Rockies

The Clammer and the Submarine

The Confessions of a Beachcomber

Himalayan Journals — Complete

The Wilderness Castaways

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

In Northern Mists: The History of Arctic Exploration

Ancient Ice Biology

Swell

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

Jock of the Bushveld

Trail-Tales of Western Canada

Across Mongolian Plains

In the Dwellings of the Wilderness

Forest Neighbors: Life Stories of Wild Animals

A Canyon Voyage

Plain Tales of the North

The Wolf Hunters: A Tale of Adventure in the Wilderness

Basin Formation