Ecology

Among the Meadow People

The Face of the Earth as Seen from the Air

Margaret Mahaney Talks About Turkeys

Young Folks' Nature Field Book

The Bee-Master of Warrilow

Proceedings of the fourth National Conservation Congress at Indianapolis, October 1–4, 1912

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

Karaway the Cockatoo and Other Nature Stories

The Tropical World

Street Trees

The Andes and the Amazon; Or, Across the Continent of South America

Afloat in the Forest; Or, A Voyage among the Tree-Tops

Carlsbad Caverns National Park, New Mexico

Speciation of the Wandering Shrew

Riverby

Bucolic Beatitudes

Peter Parley's Wonders of the Earth, Sea, and Sky

Glacier National Park

The Geography of New Jersey

The Book of Nature