XII 



CONTENTS. 



The History of Life on the Theory of Descent with Modification . 

 Letters retained in the Spelling but Useless in Pronunciation 

 Man's Deficiency in Tail ...... 



Points of Resemblance between Man and Monkey . 

 Variability of Man ...... 



Causes of Variability in Domesticated Man . 



Action of Changed Conditions ..... 



The Inherited Effects of the Increased and Diminished Use of Parts 

 Reversion as a Factor in the Development of Man 

 Reversion in the Human Family .... 



Prepotcnce in the Transmission of Character 

 Natural Selection in the Development of Man 

 How Man became upright ..... 



The Brain enlarges as the Mental Faculties develop . 

 Nakedness of the Skin ...... 



•-'Is Man the most helpless of the Animals ? . 



PAGE 



144 

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 171 



VIII. 



Mental Powers of Man and the Lower Animals compared 



"Fundamental Intuitions the same in Man and the other Annuals 

 Man and the Lower Animals excited by the same Emotions 

 All Animals possess some Power of Reasoning . 

 The Power of Association in Dog and Savage 

 The Lower Animals progress in Intelligence 

 The Power of Abstraction .... 

 The Evolution of Language — . 

 Development of Languages and Species compared 

 The Sense of Beauty ..... 

 Development of the Ear for Music 



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IX. 



. Development of the Moral Sense. 



From the Social Instincts to the Moral Sense 

 Human Sympathy among Animals 

 The Love of Approbation .... 

 Fellow-Fecling for our Fellow-Animals 

 Development of the Golden Rule . 



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