SURGICAL THEEAPEDTICS. 



the roll turned upwcrd, gently draws on it away from the start- 

 ing poiat, unrolls it, and with it surrounds the entire region in 

 returning to the startiug poiat. This process is contiaued until 

 the band is exhausted, when it is secured by pins or by strings. 

 Thus applied, it may be laid iu a circular manner, when the turns 

 rest exactly upon each other, or in a spiral manner when they 

 overlap each other ia part of their width, or in. a crossed or figure 

 of eight manner, when the turns cross each other to meet always 

 at a given point. If they are applied upon cyHndrical surfaces, 

 the folds generally he smoothly and evenly upon each other as 

 they are successively formed, but if the region is of conical shape 

 or otherwise irregular ia form, one of the borders will adapt itself 

 more readily to the parts than the others. Hence the formation 

 of bulging parts or pockets, which render the smooth and proper 

 appUcation of the bandage very difficult, and may interfere with 

 its sohdity. This is avoided by giving to the roller an oblique 

 half tvsdst, which, whUe it changes the gaping border in its posi- 

 tion, prevents the slackening of the bandage and removes the 

 pocket. This is principally required in the bandaging of the lower 

 part of an extremity (Fig. 86). 



The application of bands on double roUs is also subject to the 



Fis. SB.— How to Apply a Bandage. 



