xvi Contents. 



CHAPTER XIII. 



THE DESTRUCTIVE AGENCIES OF NATURE. PAGE 



Necessity of Destruction Man's Influence Primeval State 

 of the Earth Glacial Periods Changes of Climate 

 Influence of Pestilence Eras of Rest State of Ice- 

 land No Real Destruction . .158 



CHAPTER XIV. 



PROGRESS OF MAN. 



Alternation of Races Children and Savages Men only 

 Equal Theoretically Beliefs dependent on Race and 

 Geographical Distribution All Religions of Divine 

 Origin Missionaries Hereditary Influences Propor- 

 tion of the Sexes Alleged Degeneracy of Man The 

 Ancient Athenians Celibacy in the Church Cruelty 

 and Immorality of the Ancients Re-action in Modern 

 Times 167 



NOTES. Religion of the Semites and Aryans Moham- 



madanism . .199 



CHAPTER XV. 



HARMONY OF NATURE. 



Balance of Nature Strength of Small Animals Limits of 

 Variation Of Multiplication Heavy Fruits Relative 

 Perfection of the Universe . . 201 



CHAPTER XVI. 



SUMMARY AND CONCLUSION . 205 



