Ecosystems & Habitats

Yellowstone and Grand Teton National Parks

Then and Now or, Thirty-Six Years in the Rockies

Shearwater

The Seashore Book: Bob and Betty's Summer with Captain Hawes

Carlsbad Caverns National Park, New Mexico

The Flying Machine Boys in the Wilds The Mystery of the Andes

Grit A-Plenty: A Tale of the Labrador Wild

The Outdoor Chums in the Big Woods; Or, Rival Hunters of Lumber Run

Mount Rainier, a Record of Exploration

Misty Giants of the Lava Beds

My household of pets

The Life of the Caterpillar

The Mountains of California (Illustrated Edition)

Alaska Days with John Muir: 4 Books in One Volume

Ungava Bob: A Winter's Tale

The Names of the Stars

Apo Sandawa

West-Running Brook

Wolf and Coyote Trapping: An Up-to-Date Wolf Hunter's Guide

Mississippi River Tragedies