Contents. xv 



CHAPTER IX. 



GEOGRAPHICAL DISTRIBUTION. PARE 



Traditions of tlie Deluge Islands Sea Barriers Local 

 Variations in Size of Animals America and the 

 Old World Australia Introduced Species American 

 Waterweed Madagascar The Canaries and the East 

 Indies 103 



CHAPTER X. 



VARIATION UNDER DOMESTICATION. 



Effects of Domestication Sheep Pigeons Explanations 

 on the Theory of Special Creation Domestication in 

 Ancient Times Importance of Variation to Man . 119 



CHAPTER XI. 



ORIGIN OF LIFE ON THE EARTH. 



Origin of Life a Mystery Biassed Theories Prochronism 



. Voltaire's Theory of Fossils Sir W. Thomson's 



Meteoric Theory Origin of Mundane Life probably 



Terrestrial Lowest Living Organisms Ultimate Origin 



of Life . .126 



CHAPTER XII. 



COURSE OF DEVELOPMENT ON THE EARTH. 



Succession of Forms Theory of Direct Creation Subversive 

 of the Argument from Design Immutability and 

 Universality of the Laws of Nature Wallace's View 

 of the Origin of Man Absolute and Relative Perfection 

 Progress of Vertebrate Animals Man Geologically 

 Analogous to a Class Extinction of Species Small 

 Species usually Survive Larger Apparent Exceptions 

 Social Hymenoptera Intelligence of Vertebrate 

 Animals The Dog Indestructibility of Life Pre- 

 existence and Successive Existences . 137 



