PRINCIPLES OF VETERINARY SURGERY 199 



occasionally be employed to advantage in assisting in the 

 arrest of slight bleeding from capillaries and small veins. 

 They should, however, be avoided as much as possible, as 

 they retard regeneration and are always inimical to the 

 general welfare of the injured tissue. Adrenalin has a pow- 

 erful hemostatic action in preventing as well as in arresting 

 bleeding. Applied to the conjunctiva, it is of actual service 

 in carrying out trivial operations. Subcutaneously it renders 

 the connective tissue anaemic, but has no effect upon the 

 cutaneous vessels. 



The other expedients used to control haemorrhage are 

 cold packs, hot packs, elevation of the bleeding part, and the 

 internal administration of styptics. The latter, however, are 

 of but little value. They are always, found wanting, when 

 in critical situations they are depended upon to help the 

 surgeon save the life of a bleeding patient. 



