Nature

The Spell of the Rockies

The Lapland

Old Fashioned Flowers, and other out-of-door studies

Old Fashioned Flowers, and other out-of-door studies

Pearls and Pebbles; or, Notes of an Old Naturalist

The Structure and Habits of Spiders

Foliage: Various Poems

The Clammer and the Submarine

China and the Attack on Canton

Egyptian Birds

In Beaver World

The Man-Eaters of Tsavo

The Life Of A Plant Called Eleventh-hour

My First Summer in the Sierra (With Original Drawings & Photographs)

Decharacterization And Degradation Of The Urban Landscape

Cacti And Succulents

The Confessions of a Beachcomber

Wild Earth

The Rocky Mountain Wonderland

A Pictorial Guide to Mesa Verde National Park