IMPOSTHUMES. 237 



vinegar fhould be changed for campho- 

 rated fpiric of wine, to four ounces, of 

 which may be added one of fpirit of fal 

 armoniac •, or it may be bathed with a 

 mixture of two ounces of crude fal ar- 

 moniac boiled in a quart of chamber-lye, 

 twice a day, and rags dipped in the fame 

 may be rolled on. 



Fomentation made by boiling worm- Fomenta- 

 wood, bay-leaves, and rofemary, and ^^^"\°^^^a 

 adding a proper quantity of fpirits, are "^^'^^^Z* 

 often of great fervice to thin the juices, 

 and fit them for tranfpiration ; efpecially 

 if the injury has affeded the joints. 



But in bruifes, where the extravafated 

 blood will not by thefc means be dif- 

 perfed, the fliorteft way is to open the 

 ikin, and kc out the grumes. 



Critical tumours, or fwellings, which Obfervs- 

 terminate fevers, fhould by no means be ^^^"• 

 difperfed ; except when they fall on the 

 paftern or coffin-joint, fo as to endanger 

 them: in this cafe the difcutient fomen- 

 tation, p. 227. fliould be applied three or 

 four times a day, and a cloth or flannel 

 frequently wrung out of the fame fhould 

 be bound on, in order to keep the joint 

 continually breathing. . 



But 



