88 ORANGE COUNIT 



wise, should be taken that the blood flows in a regular 

 stream into the centre of the vessel, for if it is suffered 

 to trickle down the sides it will not afterwards under- 

 go those changes by which we partially judge of the 

 extent of inflammation. The pulse, however, and the 

 symptoms of the case collectively, will form a better 

 criterion than any change in the blood. Twenty-four 

 hours after the operation the edges of the wound will 

 have united, and the pin should be withdrawn. When 

 the bleeding is to be repeated, if more than three or 

 four hours have elapsed, it will be better to make a 

 fresh incision rather than to open the old wound. 



In local inflammation, blood may be taken from any 

 of the superficial veins. In supposed affection of the 

 shoulder, or of the fore-leg or foot, the plate vein, 

 which comes from the inside of the arm, and runs up- 

 wards directly in front of it towards the jugular, may 

 be opened. In affections of the hind extremity, blood 

 is sometimes extracted from the saphcena, or thigh-vein, 

 which runs across the inside of the thigh. In foot 

 cases it may be taken fl-om the coronet, or, much more 



