Ecology

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

Wood and Stone

Under Blue Skies: Verses & Pictures

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

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

What the Blackbird said

Geographic Distribution of the Pocket Mouse, Perognathus fasciatus

Essays in Natural History and Agriculture

Minnesota; Its Character and Climate

The Open Window: Tales of the Months

The Child's Book of Nature

Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae

Reading the Weather

British Butterflies

Saunterings

Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas

Ontario Teachers' Manuals: Nature Study

A Jar of Honey from Mount Hybla

Camping with President Roosevelt

The Challenge of the Country: A Study of Country Life Opportunity