Environmental Protection

My Year In A Log Cabin

The Spell of the Rockies

Nature Mind Healing

Pearls and Pebbles; or, Notes of an Old Naturalist

Seed Bank Vaults

Wild Life at the Land's End

Deadfalls and Snares

On Naval Timber and Arboriculture

In Beaver World

The Incredible Travel Tales of John Muir (Illustrated Edition)

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

Alaska Days with John Muir

Literary Pilgrimages of a Naturalist

The Rocky Mountain Wonderland

Watched by Wild Animals

The Great White North

A Pictorial Guide to Mesa Verde National Park

The Child's Book of Nature

The Rocky Mountain Goat

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