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CONTENTS 



Introduction xi 



THE FACTS OF EVOLUTION 



CHAPTER 



1. The Common Sense of the Evolution Question i 



2. The Make-Up and the Workings of the Earth i6 



3. Resemblances and Differences Among Living 



Things 49 



4. The Insides and Workings of Living Things yy 



5. How Living Things Come to Be What They Are 121 



6. Changing Plant and Animal Nature . . 144 



7. Changing Human Nature 193 



8. Experimental Transformation of Species . 227 



THEORIES OF EVOLUTION 



9. Theories of Evolution and Creation .... 279 



10. Relation of Use and Disuse to Evolution . . 301 



11. The Theory OF Natural Selection 329 



12. Evolution by Jumps 370 



13. The Inward Urge TO Change . . . . . 398 



THE PRACTICAL SIGNIFICANCE OF EVOLUTION 



14. Living IN A World OF Change 433 



Index 467 



