Ecology

The Man Who Went Too Far

Airs, Waters, Places

Intelligence in Plants and Animals

A Brief History of Forestry

Facts and Arguments for Darwin

Conspecificity of two pocket mice, Perognathus goldmani and P. artus

The Story of a Thousand-Year Pine

Fragments of Earth Lore: Sketches & Addresses Geological and Geographical

Little Masterpieces of Science: The Naturalist as Interpreter and Seer

An Elementary Manual of New Zealand Entomology

Essays Upon Heredity and Kindred Biological Problems

Arbor Day Leaves

The Flower-Fields of Alpine Switzerland: An Appreciation and a Plea

Nitrogen Bacteria and Legumes

Mammals of Northwestern South Dakota

The Solomon Islands and Their Natives

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

Identification of the Larger Fungi

Sphinx Vespiformis

Freckles from the Marvelous Forest