viii Contents. 



CHAPTER III. 

 ESSAYS IN STATISTICS. 



MM 



I. Quantitative and Qualitative Science ... ... ... 182 



II. Gallon's Statistics ... ... ... *86 



IIL Value of Statistical Documents ... ... 190 



CHAPTER IV. 

 EXCEPTIONS TO THE LAW OF HEREDITY. 



I. Facts contrary to Heredity ... ... ... ... 194 



II. Is there a Law of Spontaneity ? ... ... ... ... 198 



III. Causes of Anomalies ... ... ... ... ... 202 



IV. Disproportion between Causes and their E.Tects ... ... 205 



V. The Metamorphoses of Heredity ... ... ... ... 209 



PART THIRD. 

 THE CAUSES. 



CHAPTER I. 



GENERAL RELATIONS BETWEEN THE PHYSICAL AND THE 

 MORAL. 



I. Heredity one Aspect of these. The Present State of the Question. 



The Opposition between Physics and Morals ... ... 217 



II. Phenomena of Unconsciousness ; the Spinal Cord and Reflex 

 Actions ; Automatism of the various Nerve-Centres ; Auto- 

 matism of the Brain ; Unconscious Cerebration. The Uncon- 

 scious in Psychological Phenomena : Instinct, Habit, Perception, 

 Imagination, Reasoning, Character, Language ... ... 220 



IIL Phenomena of Consciousness. The Fact of Consciousness referred 

 to Nerve Shock. Velocity of Thought : how Measured. Is 

 Consciousness Simple or Complex, Cause or Effect ? Impossi- 

 bility of conceiving of the Ego without Phenomena, or Pheno- 

 mena without the Ego ... .. ... ... ... 2J 



