jpo OF VERTIGO. Sect. XX. iz* 



hence it appears, that the means of cure muft be adapted to 

 the caufe. 



To prevent fea-ficknefs it is probable, that the habit of fwing- 

 ing for a week or two before going on fhip board might be of 

 fervice. For the vertigo from failure of fight, fpe&acles may be 

 nfed. For the auditory vertigo, aether may be dropt into the ear 

 to ftimulate the part, or to diflblve ear-wax, if fuch be a part of, 

 the caufe. For the vertigo arifing from indigeftion, the peruvi- 

 an bark and a blifter are recommended. And for that owing 

 to a (lone in the ureter, venefection, cathartics, opiates, fal foda 

 aerated. 



12. Definition of vertigo, i. Some of the irritative fenfual, 

 or mufcular motions, which were ufually not fucceeded by fen- 

 fation, are in this difeale fucceeded by fenfation ; and the trains 

 or circles of motions, which were ufually catenated with them, 

 are interrupted, or inverted, or proceed in confufion. 2. The 

 fenfitive and voluntary motions continue undifturbed. 3. The 

 aflbciate trains or circles of motions continue ; but their catena- 

 tions with fome of the irritative motions are difordered, or in- 

 serted, or diffevered. 



SECT. 



