Ecology

A New Subspecies of the Fruit-eating Bat, Sturnira ludovici, From Western Mexico

White Mountain Trails

Be the Change You Want to See in the World

A Rough Ride to the Future

Sustainability

Shepherds of the Wild

The Book of Alfalfa

Happy: The life of a bee

On poetic interpretation of nature

Diversions of a Naturalist

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

Conversations with Nature

Wild Waters

Paths of the Mound-Building Indians and Great Game Animals

The Land of Little Rain

The Forest of Dean: An Historical and Descriptive Account

In New England Fields and Woods

Little Masterpieces of Science: The Naturalist as Interpreter and Seer

The Baculum in the Chipmunks of Western North America

Hours of Exercise in the Alps