Environmental Protection

Wild Animals at Home

The turtles, snakes, frogs and other reptiles and amphibians of New England and the north

Getting Acquainted with the Trees

A Watcher in The Woods

Colin Clout's Calendar: The Record of a Summer, April-October

Morag the Seal

Our Arctic province : Alaska and the Seal Islands

Nature's invitation: Notes of a bird-gazer, North and South

Cruise of the Revenue-Steamer Corwin in Alaska and the N.W. Arctic Ocean in 1881: Botanical Notes

Craters of the Moon

Craters of the Moon

Rambles with John Burroughs

Science of Trapping

Notes on Collecting and Preserving Natural-History Objects

Forestry for Farmers

Ways of Wood Folk

Riverby

Glacier National Park

The Book of Nature

Everglades Wildguide