COMPRESSION AND LIGATION. 



119 



of the cord. Generally, this modification is advisable when the 

 tissues have undergone much change, and are infiltrated with infective 

 fluids which might be pressed into the healthy tissues by the bandage 

 and produce very grave results. 



Fig. 156. — Ligating an artery ; second stage. 

 Compression is useful where one cannot ligate the divided vessel. 

 The portion of the wound where the divided vessel is seated is 



157. — Greig-Smith's artery 

 forceps. 



Fig. 158.— Spencer Wells' artery forceps 

 (with separable limbs for cleaning). 



compressed either with the finger or with a tampon of cotton wool 

 (immediate compression). In the event of this failing, the main 

 vessel supplying the parts is compressed at the point nearest^ the 



