On the Study of Zoology
Science & Education
William Harvey and the Circulation of the Blood
Hume
Method By Which the Causes of the Present and Past Conditions of Organic Nature Are to Be Discovered — the Origination of Living Beings
Autobiography and Selected Essays
The Advance of Science in the Last Half-Century
A Scientific Education: Essays from a Naturalist (Unabridged)
Evidence as to Man's Place in Nature (Unabridged)
