HORSES. 77 



LOWER NIPPERS AND LEFT TUSH OF A VERY OLD HORSE, 

 THE RIGHT TUSH HAVING FALLEN OUT. 



WORMS IN HORSES. 



Those from which horses mostly suffer are the long white 

 worm [lnhricus teres)^ and the . small darker- coloured worm 

 {ascaris), often called needle worm. The former are from six 

 to ten inches long, and inhabit the small intestines, and when 

 they exist in any quantity they materially interfere with the 

 condition of the horse, as they feed on the nutritive part 

 of the food, or mucus of the intestines. The best treatment 

 appears to be to give, according to the size of the horse, from 

 one to two drachms of tartar emetic, mixed in a little damp food, 

 every day for six days, an hour before the horse is fed, then to 

 mash him for a day, and, having so done, to give a dose of physic, 

 say five drachms Barbadoes aloes. 



The smaller worm (ascaris) inhabits the larger intestines, the 

 coecum and rectum, where they are often found in large quan- 



