Ecology

Songs out of Doors

Sanctuary: A Bird Masque

Four-Footed Americans and Their Kin

Canoe and camera: a two hundred mile tour through the Maine forests

The Subterranean World

The Periodical Cicada, “the 17-year Locust”

Birds, Beasts and Flowers

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

The Manatitlans or, A record of recent scientific explorations in the Andean La Plata, S. A

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

Mearing Stones: Leaves from My Note-Book on Tramp in Donegal

Ferdinand Vandiveer Hayden and the Founding of the Yellowstone National Park

Grand Teton [Wyoming] National Park

A Voyage of Discovery to the Southern Hemisphere

Our Common Land (and Other Short Essays)

Hours of Exercise in the Alps

Canyons of the Colorado

Summer Birds From the Yucatan Peninsula, Mexico

Afoot in England

The Encantadas