DISEASES OF SHEEP. 12 



for example, inflammation of the lungs, vertigo, inflammj 

 tion of the brain, etc. 



The healing process is an action of the system by whic 

 the disease is decomposed, and health is made to retur 

 either by nature alone or with the aid of art. The gres 

 power to heal lies in the organism of the animal itself, an 

 it is in our power only to modify the efforts of natur 

 This object may often be accomplished by a negati-^ 

 method, as by removing certain irritations, changing tl 

 diet, etc. An active interference is sometimes unnecessar 

 because nature itself often possesses the power to restore tl 

 health. Premature interference is productive of more i: 

 jury than benefit, and there is no doubt that nature is ab 

 to heal many diseases in man and other animals. 



To restore health the following requirements must 1 

 fulfilled : 1. The cause of the disease must be removed 

 possible ; 2. The product of the disease must be got rid o 

 3. The affected organ must be renovated ; and, 4. Wh 

 has been lost must be replaced by rest and proper food. 



The fulfillment of these requirements, belongs principal 

 to art, since nature does not always or quickly enough sii 

 ceed in removing the cause of the disease (foreign bodi 

 and external irritating influences), in preventing its pi 

 gress, and in avoiding dangerous influences. 



