Preventive and Curative Treatment. 



135 



mended this remedy, though the noise was somewhat loud, 

 there were indications that the dilator muscle was only weak, 

 and not wasted, and Faradisation was adopted in order to 

 strengthen it, or at least to prevent its degeneration ; while 

 the medicine was given with the view of restoring the func- 

 tion of the left recurrent nerve. The current was applied to 

 the nerve on its course in the jugular furrow, the battery 

 employed being specially constructed for this purpose 



:=0 



Fig. 8. — battery constructed for the treatment of roaring. 



(Fig. 8), and the application being made for some minutes, 

 in a mild degree, several times a day. 



This treatment, however, demands patience and constant 

 attention for a considerable time ; it is, of course, of no per- 

 manent value if the nerve cannot be restored to its normal 

 condition, and is valueless if the dilator muscle has dis- 

 appeared entirely, or even partially. 



(b) Surgical Treatment of Roaring. 

 The surgical treatment of Roaring was for many years 

 limited to applying the actual cautery to the' skin over the 

 larynx, and blistering that part ; but this was found so 



