XVlll 



THE GRAMMAR OF SCIENCE 



SEC. 

 2. 



Preferential Mating ..... 



Assortative Mating ..... 



Genetic (Reproductive) Selection 



On the Reality of Genetic Selection 



First Notions of Heredity .... 



On the Quantitative Measurement of Heredity 



On Prepotency and Telegony .... 



On the Inheritance of Fertility. Genetic Selection 



10. On Bi-parental Inheritance .... 



11. On the Law of Ancestral Heredity 

 On the Power of Selection to permanently modify Types by the 



Establishment of Breeds .... 



On Exclusive Inheritance and the Law of Reversion 

 On the Inheritance of the Duration of Life. Proportions of the 



Selective and Non-Selective Death-rates • . 



Concluding Remarks ..... 

 Summary and Literature ..... 



J- 

 4- 



5- 

 6. 



7- 

 8. 



9- 



12. 



13- 

 14. 



15- 



PAGE 

 425 

 429 



437 

 441 



449 

 454 

 459 

 462 

 468 

 475 



481 

 486 



496 

 500 

 502 



CHAPTER XII 



THE CLASSIFICATION OF THE SCIENCES 



1. Summary as to the Material of Science 



2. Bacon's " Intellectual Globe " 



3. Comte's " Hierarchy " 



4. Spencer's Classification . 



5. Precise and Synoptic Sciences 



6. Abstract and Concrete Sciences. Abstract Science 



7. Concrete Science. Inorganic Phenomena 

 S. Concrete Science. Organic Phenomena . 

 9. Applied Mathematics and Bio-Physics as Cross Links 



10. Conclusion ..... 



Summary and Literature .... 



504 

 506 

 508 

 510 



513 

 514 

 519 

 523 

 527 

 529 



531 



APPENDIX 



Note I. On the Principle of Inertia and Absolute Rotation . 

 II. On Newton's Third Law of Motion 



III. William of Occam's Razor . ' . 



IV. On the Vitality of Seeds . ... 

 V. A. R. Wallace on Matter ..... 



VI. On the Sufficiency of Natural Selection to account for the 

 History of Civilised Man .... 



VII. On the Reversibility of Natural Processes . 



533 

 536 

 536 

 537 

 538 



539 

 540 



INDEX 



541 





