Ecology

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

Essays of a Biologist

Wake-Robin

The Eagle's Nest

Nature Mysticism

In the Dwellings of the Wilderness

Nature's Serial Story

The Isles of Sunset

The Myxomycetes of the Miami Valley, Ohio

Antarctic Penguins: A Study of Their Social Habits

The Common Objects of the Country