Ecology

What the Blackbird said

Street Trees

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

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

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

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

Carlsbad Caverns National Park, New Mexico

Speciation of the Wandering Shrew

Arqtiq: A Study of the Marvels at the North Pole

Bees

A Population Study of the Prairie Vole (Microtus ochrogaster) in Northeastern Kansas

Walden, and On The Duty Of Civil Disobedience

Riverby

Bucolic Beatitudes

In a Cheshire Garden

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

Glacier National Park

The Geography of New Jersey

The Mammals of Warren Woods, Berrien County, Michigan

The Book of Nature