xii Contents part iv 



CHAPTER XX 



HEREDITY 



X. The facts of heredity — 2. Theories (f heredity, historical retrospect — 

 3. The Tnodem theory of heredity — 4. The inheritance of acquired 

 characters — 5. Social and ethical aspects — 6. Social inheritance 



Pages 320-339 



APPENDIX I 



ANIMAL LIFE AND OURS 



A. Our relation to animals : i. Affinities and differences between man 

 and monieys — 2. Descent of man — 3. Various opinions about the 

 descent of man — 4. Ancestors of man — 5. Possible factors in the 

 ascent of man. B. Our relation to Biology : 6. The utility of 

 science — 7. Practical justification of biology — 8. Intellectual 

 justification cf biology ..... 340-350 



APPENDIX II 



SOME OF THE BEST BOOKS ON ANIMAL LIFE 



A. Books on " Zoology"— 'Z. Boohs on "Natural History" — C. Books 

 on "Biology'' ..... 351-369 



Index ..... . 371-37S 



