Ecology

Among the Meadow People

The Wonders of the Jungle, Book Two

Among the Pond People

What the Blackbird said

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

Flowers of Mountain and Plain

Margaret Mahaney Talks About Turkeys

Essays of a Biologist

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

Young Folks' Nature Field Book

The Bee-Master of Warrilow

Karaway the Cockatoo and Other Nature Stories

A Book of Dartmoor

The Tropical World

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

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

Street Trees

The Twelve Months of the Year, with a Picture for each Month

Pere Marquette State Park

The Young Collector's Handbook of Ants, Bees, Dragon-flies, Earwigs, Crickets, and Flies