152 WORMS, 



Descriptiou of the Tereies. 



their nourishment; and by their ulcerating the 

 parts very often destroy the horse. The symp- 

 toms indicating botts in horses are few : they are 

 first discovered in the dung, and are frequently 

 seen sticking to the straight gut, near the funda- 

 ment, from whence they are often forced off with 

 the dung. The animal generally looks lean, and 

 his hair stares like that of a surfeited horse. He 

 frequently strikes his hind feet against his belly, 

 and, in many respects, appears like one that is 

 griped. I have known horses at the latter end of 

 a dry summer (when the ponds, or springs, have 

 been very low, and the waters become muddy, by 

 reason of cattle standing in them, and filled with 

 swarms of insects), to be much infected with 

 botts in the stomach ; which is the chief cause 

 why so many hundreds of them die in the low, 

 fenny, and marshy counties. 



The teretes, or round worms, resemble the 

 common earth worm in appearance : they are 

 usually while, about eight or ten inches long, and 



