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v. 1. Method and results.--v. 2. Darwiniana.--v. 3. Science and education.--v. 4. Science and Hebrew tradition.--v. 5. Science and Christian tradition.--v. 6. Hume, with Helps to the study of Berkeley.--v. 7. Man's place in nature, and other anthropological essays.--v. 8. Discourses, biological and geological.--v. 9. Evolution and ethics, and other essays