Human Physiology. 2JJ 



CHAPTER IX. 



LIFE AND DEATH. 



'-Subjects postponed to Part Fourth Vital Heat Equality of Heat Life 

 in High and Low Temperatures Origin of Animal Heat Radiation 

 and Evaporation The Phenomena of Death Possibility of the Re- 

 surrection Conscious Identity Pleasure and Pain. 



IN Part Second I have considered at some length the pheno- 

 mena of Life ; but there are some of its incidents connected 

 with the human body which may require more particular men- 

 tion. I have also to speak of the relation of the body to the 

 termination of this stage of our existence of that change 

 which we describe as Death. 



I have adverted in a general way to differences of sex in 

 vegetables, and through the animal kingdom. Sex varies the 

 human body, and modifies the human soul. There is a strik- 

 ing difference in the thoughts and feelings, brains and nervous 

 systems, forms and organs of men and women. Into this sub- 

 ject, and all that- belongs to the great function of generation, or 

 the mode which the Creator has appointed for the continua- 

 tion of all living beings upon the earth, I shall enter fully in Part 

 Fourth. I have therefore omitted from this Part all account of 

 sexual peculiarities, and of those portions of the human body 

 engaged in the generative function. Some writers on Human 

 Physiology have thought proper to omit all mention of the man- 

 ner in which human beings are brought into the world to ignore 

 what is certainly not the least important portion of the human 

 economy, in respect to health, duty, and happiness ; to utterly 

 neglect what it is of the greatest importance that all should 

 know ; to leave people in ignorance, where ignorance is full of 

 peril. I cannot follow their example. There is no fact in 

 ^nature which it is not well to know. There is no fact in the 



