Environmental Protection

Burton Island State Park: Guide to the Interpretive Nature Trail and Hiking Trail

The Grail Bird

Everyday birds: Elementary studies

Where Men No More May Reap or Sow

Wake-Robin

American Big-Game Hunting: The Book of the Boone and Crockett Club

Wayside and Woodland Trees: A pocket guide to the British sylva

A Book of Dartmoor: Historical Novel

The Flower-Fields of Alpine Switzerland: An Appreciation and a Plea

Nature's Serial Story

Grand Teton [Wyoming] National Park

Woodland Tales

Wild Life Near Home

The Face of the Fields

With God in the Yellowstone

Forest Neighbors: Life Stories of Wild Animals

The Extermination of the American Bison

John Muir: The Story of My Boyhood and Youth & Letters to a Friend (Illustrated Edition)

Birds and Bees, Sharp Eyes, and Other Papers

Earth Science and Earth Structure