Chapter 23

philosophers, and what shadowing of truth was there in their beliefs? 2. What was Lucretius's idea? 3. What were the explanations of Genesis given by St. Augustine and by Thomas Aquinas? 4. What were theories of Descartes, Leibnitz, and Kant? 5. How is the delay of the thought of evolution accounted for? 6. What were the contributions of Linnæus, Buffon, Erasmus, Darwin, Lamarck? 7. What check to progress was made by Cuvier and Agassiz? 8. What phases of evolution were studied by Goethe?