Environmental Protection

The Antarctic Book of Cooking and Cleaning

The Gospel According to the Earth

Lyrics of Earth

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

An Experimental Translocation of the Eastern Timber Wolf

The Fall of the Year

Wakulla

The Crest of the Continent: A Summer's Ramble in the Rocky Mountains and Beyond

Mooswa & Others of the Boundaries

Modern Whaling & Bear-Hunting

Ontario Teachers' Manuals: Nature Study

The Extermination of the American Bison

Nature's Teachings: Human Invention Anticipated by Nature

Our Common Land (and Other Short Essays)

On Naval Timber and Arboriculture

A Bird-Lover in the West

Pearls and Pebbles; or, Notes of an Old Naturalist

Nature Near London

Cottontail Rabbits in Relation to Trees and Farm Crops

The Rocky Mountain Wonderland