Environmental Protection

Masters of the Wilderness

North American Recent Soft-Shelled Turtles (Family Trionychidae)

Bee-Keeping

Guide to Yosemite

The Web of Life

Getting Acquainted with the Trees

The Wilderness Essays

Woodland Gleanings: Being an Account of British Forest-Trees

Wild Apples

The Bee-Master of Warrilow

In New England Fields and Woods

A world of green hills : Observations of nature and human nature in the Blue Ridge

Wake-Robin

Pets Gone Green

The Falls of Niagara and Other Famous Cataracts

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

Trails and Tramps in Alaska and Newfoundland

Glacier National Park

Trees of Indiana

A Traveller in Little Things