xii Contents 



CHAPTER XX 



HEREDITY 



i. The facts of heredity 2. Theories of 'heredity ', historical retrospect 

 3. The modern 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 monkeys 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 of biology ..... 340-350 



APPENDIX II 



SOME OF THE BEST BOOKS ON ANIMAL LIFE 



A. Books on "Zoology" B. Books on "Natural History" C. Books 

 on "Biology" ..... 35 T -369 



INDEX ....... 371-375 



