Environmental Protection

The Spell of the Rockies

The Amateur Poacher

Underground Treasures: How and Where to Find Them

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

The Geology of Groton State Forest

The Migration of North American Birds

Krag and Johnny Bear

Wild Earth

The book of earth

Bee-Keeping

The Strangest Things in the World: A Book About Extraordinary Manifestations of Nature

Forest, Lake and Prairie

The Wanderings of an Elephant Hunter

The apiary; or, bees, bee-hives, and bee culture

The Salton Sea: An account of Harriman's fight with the Colorado River

Wilderness Honey

The Wisdom of Albert Schweitzer

Adventure Travel Unleashed

The Gospel According to the Earth

Views of Nature – Contemplations on the Sublime Phenomena of Creation with Scientific Illustrations