C 155 ) 



will occafion it; and there is fomeland not fo 

 moid that will produce it ; but 1 am fully 

 convinced that there will be found fwamps or 

 wet holes in fuch land. 



It is well known that fheep, by being rnov- 

 ed to a market or fair, have caught the rot in 

 one night. As the difeafe is not contagious, 

 this muft have arifen from feeding upon parti- 

 cular fpecies of grafs, infeded with an egg on 

 it or fomething of that kind ; and I am incli- 

 ned to think this to be the cafe from the fol- 

 lowing circumftances : A farmer, in the neigh- 

 bourhood of Wragby, in the county of Lincoln, 

 took twenty fhearling wethers to that fair, and 

 left fix (heep behind in their old pafture. The 

 fcore of flieep fent to the fair were not fold, 

 Gonfequently were brought back, and returned 

 into the field where the fix had been left. Eve- 

 ry one of the fcore which had been taken to the 

 fair died of the rot within the courfe of the 

 winter ; but the fix left behind all lived, and 

 did well. There could have been no miftakc 

 with refped to this fad; as the flieep fent to 

 the fair had been marked in a particular man- 

 ner, and very differently from the remaining fix. 



Another 



