CAPPED KNEE. 



331 



change. If, after a blister or two, the swellincr still remains soft, 

 we mav draw off the fluid at its lowest point by means of an aspi- 



Fig. 136. — P>ont view of thoroughpin. 



m 



^ 



rator, under antiseptic precautions (p. 70) and bandage. Or, as 

 is usually done, we may make a small horizontal incision at the 

 lowest point of the sac, which we may syringe out well with an 



