PHYSICAL AND LITERART. 163 



fort of humour is conftantly drilling. By 

 degrees the, crack enlarges towards the 

 middle, and the fcab, puihed off, gives 

 place to the fungus juft now defcribed. 

 At other times the fpungy excrefcences 

 fucceed a dark or grey fcarf, refembling 

 fome kind of leprofy. The parts are ve- 

 ry itchy, and, when made raw by fcratch- 

 ing or otherwife, the flefh is allowed to 

 fprout. 



These fores occupy every part of the 

 body, and many of them are feen in the 

 fame fubjedl at the fame time. But the 

 excrefcences do not always happen, and 

 feem to be more frequently produced in 

 the fore that never fcabs, than in the 

 fcabby or fcaley ones. They are rather 

 indolent than tender to the touch ; and 

 their colour is not remarkably different 

 from that of the fungus of other fores. 

 From this berry-^like rifing in the vene- 

 real fore, the difeafe is faid to be denomi- 

 nated the Si WENS ; Sivven, in the high- 

 lands, being a common name for a nvild 

 rafp. 



Hi- 



