HUMAN PHYSIOLOGY 



THE BASIS OF SANITARY AND SOCIAL SCIENCE. 



PART FIRST. 



THE ACTUAL CONDITION OF HUMANITY. 



CHAPTER I. 



MAN AND HIS RELATIONS. 



Physiology defined The Law of Life in Organisation The Natural Basis 

 of Morality Human Progress Man differs from all other Animals 

 Moral Responsibility Reason and Instinct Man alone a Religious 

 Being Population of the Earth Destiny of Savages England a 

 Model Nation. 



PHYSIOLOGY means, literally, the Science of Nature (physis, 

 nature, and logos, discourse or science) ; but the word is used 

 to signify Science of Life. The term Biology more accurately 

 expresses this meaning, but it is not so generally understood, 

 and has been perverted to other uses. 



Human Physiology is the science which treats of the organs 

 of the human body and their functions. In treating of the 

 brain, or the organs of sensation, perception, or thought, we 

 enter upon the domain of Psychology (psyche, the soul, and 

 logos, a discourse), so that Physiology includes Psychology 

 We have also Vegetable, Animal, and Comparative Physiology, 



