10 CONTENTS 



CHAPTER XXII 



PAGE 



REPRODUCTION 402 



CHAPTER XXIII 



DEVELOPMENT . .... . . - . . . . 409 



1. Metamorphosis . . . .... . . 419 



2. Alternate Generation . . . ... ... . . 424 



3. Growth and Repair . . 425 



4. Likeness and Variation . . . _ . . - . 427 



5. Homology, Analogy, and Correlation . . ' . . . 429 



6. Individuality . . - . '.. . . . . 432 



7. Relations of Number, Size, Form, and Rank . . . 433 



8. The Struggle for Life 438 



CHAFFER XXIV 



THE DISTRIBUTION OF ANIMALS . . .... . . . 440 



CHAPTER XXV 



THE ORIGIN OF ANIMAL SPECIES .''..'... . . . . 450 



NOTES ... . . . ''; 467 



THE NATURALIST'S LIBRARY . . . . . .483 



APPENDIX,. . . . . . . . . . .485 



INDEX . . . . r 497 



