Environmental Protection

Conservation of marine birds of northern North America: papers from the international symposium held at the Seattle Hyatt House

Jack Miner and the Birds, and Some Things I Know about Nature

Scott Burton in the Blue Ridge

Our Vanishing Wild Life: Its Extermination and Preservation

Rivers of Great Britain

Shoshone National Forest, Wyoming

The Bee-Master of Warrilow

Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park

Woodmyth & Fable

The Tropical World

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

Birds of Britain

Life at the Zoo: Notes and Traditions of the Regent's Park Gardens

Gray Lady and the Birds: Stories of the Bird Year for Home and School

Chinook, the Cinnamon Cub

Pere Marquette State Park

Cork: Its Origin and Industrial Uses

Fur Farming

The Book of the Otter: A manual for sportsmen and naturalists

The Nation's River: A report on the Potomac