L ADMINISTRATIVE REPORT (eth. ann. 20 



five properties of human bodies and the organs which are 

 developed severally for these ])roperties. These are (1) the 

 org-ans of metabolism or animal chemistry; (2) the organs of 

 circulation or animal construction; (3) the organs of activity 

 or animal locomotion; (4) the organs of hereditary genesis or 

 reproduction, and (5) the organs of the mind or the nervous 

 system. In order that the opinions of the medical man shall 

 be of value, he must acquire a knowledg'e of the metabolic, 

 constructive, muscular, reproductive, and nervous systems of 

 the human bodv. This is fundamental. 



Here it niay be well to call attention to the organs of circu- 

 lation, in order to show tliat tliey are organs of construction, 

 though motion is involved therein, for the ])roperties are always 

 concomitant. When we consider circulation we are consider- 

 ing- it as the placement of the erythrocytes which are brought 

 to the parts where they enter into construction. We are not 

 considering the power by which circulation is accomplished, 

 nor are we considering the motion of the particles as trajecto- 

 ries, but we are considering the constructive result which arises 

 therefrom, together with the result which is produced in remov- 

 ing waste material. We are not considering how the removal 

 is accomplished, but the results of the accomplishment. 



For the sanitary knowledge which he must ol)tain, the med- 

 ical man must acquire a knowledg'e of the substances which 

 men use in continuing life on this planet — air, water, rocks, 

 plants, and animals — and liow they are kept pure from dele- 

 terious substances or conditions. This function of the med- 

 ical man is of modern origin, and belongs solely to the scientific 

 period of medicine. We have to thank the medical profession 

 for a vast body of scientific knowledge relating to this subject. 

 It is the glory of the profession that its most arduous labors, 

 its greatest scientific discoveries, and its most enthusiastic pur- 

 suits are devoted to sanitation. 



Remedial medicine has a long and interesting histoiy. We 

 have already seen, in the account given of esthetology, how 

 the fine arts are involved in the superstitions of mankind when 

 they also play an important role in the religions of the world. 

 Now we have to see how these superstitions control the practice 



