CHAPTER PAG1 



servative role. Modifying role of intelligence. Intelli- 

 gence and consciousness. Parity of animal and hu- 

 man instinct. Mechanical character of the instinctive 

 act. Instinct modified by intelligence. Habit of work 

 creates useless work. Objections to the identification of 

 instinct and intelligence taken from life of insects. 



XX. TYRANNY OF THE NERVOUS SYSTEM 194 



Accord and discord between organs and acts. Tarses 

 and sacred scarab. The hand of man. Mediocre fit- 

 ness of sexual organs for copulation. Origin of "lux- 

 uria." The animal is a nervous system served by 

 organs. The organ does not determine the aptitude. 

 Man's hand inferior to his genius. Substitution of one 

 sense for another. Union and role of the senses in 

 love. Man and animal under the tyranny of the 

 nervous system. Wear and tear of humanity com- 

 pensated by acquisitions. Man's inheritors. 



TRANSLATOR'S POSTSCRIPT ......... 206 



BIBLIOGRAPHY: PRACTICAL WORKS CONSULTED . . 220 



