Environmental Protection

Pets Gone Green

The Beauties of Nature, and the Wonders of the World We Live In

Guide to Yosemite

Bee-Keeping

North American Recent Soft-Shelled Turtles (Family Trionychidae)

Wake-Robin

Masters of the Wilderness

Trees of Indiana

Trails and Tramps in Alaska and Newfoundland

From North Pole to Equator: Studies of Wild Life and Scenes in Many Lands

Our National Forests

Outdoor pastimes of an American hunter

A Traveller in Little Things

Hampshire Days

Letters from Australia

Glacier National Park

The Web of Life

Getting Acquainted with the Trees

Woodland Gleanings: Being an Account of British Forest-Trees

The Wilderness Essays