Ecology

The Geography of New Jersey

The Book of Nature

Glaciers and Glaciation in Glacier National Park

Hope Farm Notes

Some Common Birds in Their Relation to Agriculture

The honey bee: a manual of instruction in apiculture

Burton Island State Park: Guide to the Interpretive Nature Trail and Hiking Trail

The apiary; or, Bees, bee-hives, and bee culture

The Italian Alp-bee

The new northland

An essay towards a natural history of serpents

The Treasure of the Humble

Water Survival Skills

Shelter Building Basics

The Life of the Bee

The Life of the Bee

Wild Life at the Land's End

A-Birding on a Bronco

Systematics of Megachiropteran Bats in the Solomon Islands

Subspeciation in the Meadow Mouse, Microtus montanus, in Wyoming and Colorado