160 PALSY OF THE BLADDER. [BOOK I. 



and less in quantity than usual ; a change which 

 has been effected by the great heat of his body 

 having taken the water up again, by the absorption 

 and effusion which nature has provided, of aqueous 

 particles from one part of the system to another. 

 The principle, or urea, however, remains in the 

 bladder, and produces one of two evils ; either the 

 inner or sensible coat becomes irritated, and loses, 

 after an attack of diabetes, some part of its function 

 of secreting the mucous fluid for its defence, if it 

 does not terminate fatally ; or, being less severe, 

 but often repeated, a deposition of earthy particles 

 takes place, which the great heat of his body in 

 time converts into stone or gravel. 



Palsy of the bladder is induced from frequent 

 repetitions of thus neglecting the calls of nature, 

 as well as from injuries of the spine ; in both which 

 cases the nerves having lost their sensibility, the 

 coats do not contract sufficiently, and some water 

 is always left behind. In all diseases of the blad- 

 der, a disposition to Jill speedily manifests itself; 

 and in palsy, this is the leading sy???ptotn. When 

 this evil takes place, the horse, while staling, seems 

 unwilling, or is incapable of discharging the last 

 drops of each voidance : and, if the usual practice 

 of giving strong diuretics be adopted, the animal is 

 thereby ruined, if he does not burst the fundus of 

 the bladder and die immediately : rather, the con- 

 trary method of discharging, instead of filling the 

 bladder should be sought, and the readiest way to 

 effect this is to introduce the hand into the funda- 



