PHYSIOLOGY AND NATURAL THEOLOGY 131 



elements, oxygen, hydrogen, carbon, and nitrogen, 

 with the addition of some other elements, such as 

 calcium, phosphorus, potassium, etc. The matter 

 which composes the body of a man is no more com- 

 plex than that which composes the bodies of the 

 lower animals. Both are subject to the same 

 external and internal forces, vital and physical, and 

 consequently, mind, in some degree, as well as 

 material substance, is found alike in all. 



Almost everything in the whole universe is com- 

 mon to both man and the lower animals. They are 

 subject to the general laws of gravitation and force, 

 and are in danger from falls and all impressions of 

 violence. They are subject to disease, injuries, 

 pains, and liable to mental diseases, such as melan- 

 choly and insanity. They need nourishment, a 

 proper habitation, protection from wanton abuse, 

 cruelty, or any form of suffering which may possi- 

 bly be avoided. They have a like nervous system 

 which is equally sensitive to all the impressions made 

 upon the body. They are conscious of a liberty to 

 act or not to act, and have a desire for comforts and 

 happiness. They have a social feeling and a desire 

 to love and be loved, and their good and bad dispo- 

 sitions are formed according to their environments. 



