Chapters on Evolution

If God, Then What?: Wondering Aloud About Truth, Origins And Redemption

Glimpses of Nature

Rational advice to the military: when exposed to the inclemency of hot climates and seasons

Sketches of Animal Life and Habits

Chapters on Evolution

The Abode of Snow: Observations on a Tour from Chinese Tibet to the Indian Caucasus, Through the Upper Valleys of the Himalaya

The Abode of Snow: Observations on a Journey from Chinese Tibet to the Indian Caucasus, Through the Upper Valleys of the Himalaya

An Essay on the Autumnal Dysentery

Glimpses of Nature

Glimpses of Nature

Chapters on Evolution

Chapters on Evolution

Studies in Life and Sense

Science Stories

Leisure-time Studies, Chiefly Biological: A Series of Essays and Lectures

Chapters on Evolution

The light side of science

Science and Crime: And Other Essays

Leaves from a Naturalist's Notebook