Ecology

In African Forest and Jungle

Going Afoot: A book on walking

Beautiful Lakeland

Deep-Sea Conservation Efforts

The House of the Trees & Other Poems

Arqtiq: A Study of the Marvels at the North Pole

On the Variation of Species, with Especial Reference to the Insecta

The Game-Birds of the Coasts and Lakes of the Northern States of America

Geographic Distribution of the Pocket Mouse, Perognathus fasciatus

Under Blue Skies: Verses & Pictures

Wood and Stone

The Heart of the Wild: Nature Studies from Near and Far

Sanctuary: A Bird Masque

The Structure and Habits of Spiders

Adventures of a Young Naturalist

More Hunting Wasps

The Legend of Kupirri, or, The Red Kangaroo

Running Free

Ecological Observations on the Woodrat, Neotoma floridana

The River and I