620 TJIE DISEASES OF THE HORSE 



the true digostive portion of tliis organ, but sometimes in tlio duodenum or 

 jejunum in small numlxTs. A group of these larva>, which are popularly 

 called bots, arc liere represented, but sometimes nearl}' all the cardiac ex- 

 tremity of the stomach is occupied with them, and ui>on the interstices aro 

 found little projections which are caused by those that have let go their hold, 

 and have been expelled with the food. Several of these papillae are shown 

 on the engraving, which delineates also the appearance of the bots them- 

 selves, so that no one can fail to recognize them when he sees them. 

 Another variety, known as fundament bots, are obsc^rved to attach them- 

 selves to the inside of the rectum, where they cause a good deal of irritati(jn. 

 The ily watches its opportunity to deposit the ova while the animal is in 

 the act of defteeation. 



Stomach bots appear to do no harm in moderate numbers, but they 

 undoubtedly rob their host of a good deal of food. 



Treaiment. — Destroy the eggs with paraffin or mercurial ointment rubbed 

 upon the hairs where they are deposited about the knees and shoulders by 

 the bot fl}', and the fundament bots by inunction of the rectum with the 

 ointment. The latter may be picked off with the faigei-s by the groom if 

 lie watches his opportunities. 



