268 DISEASES OP THE LIVER. 



horse bot is more tenacious of life than even the cat, which is 

 popularly endowed with nine lives. The 

 live bot has been immersed in spirits of tur- 

 pentine, alcohol, nitric and muriatic acid, and 

 THE RED GAD-FLT. mnuj othcr cquallj powerful fluids, and yet 

 he still adhered to life with marvelous tenacity. If, then, it 

 ^,^5^ were possible to detect the presence of bots by any 

 marked symptoms, the attempt to remove them would 

 certainly be hazardous to the life of the animal. The 

 author has known cases of flatulent colic to be treated 

 for bots, when, upon opening the stomach after the 

 death which inevitably ensued, not a solitary bot was 



CATERPILtAR OP ^^ ^^ ^^^^^^ J^ ^^,J|| ^^ y^^^,^^ ^^ ^^^^^ ^^^^ '^^ 

 THE RED GAD-FLT. 



large cities, where horses are not indulged in a run at grass it 

 is no unusual occurrence to find their stomachs entirely free 

 from bots. 



IS 



DISEASES OF THE LITER. 



Diseases of the liver are of very common occurrence in the 

 horse, although the singularity of the internal structure of that 

 animal renders it less liable to jaundice than the human being. 

 The horse possesses no gall-bladder; instead of such a reservoir 

 it has simply a gall-duct, called the hepatic duct, which enters 

 that portion of the intestines called the duodenum about six 

 inches from the stomach, so that the gall is emptied into the 

 bowels as fast as it is secreted. Yarious opinions have been ex- 

 pressed touching this singular arrangement in the liver of the 

 horse, any examination of which would be out of place in the 

 present work. We proceed therefore to the mention of such 

 diseases as come apparently under the above head. 



