570 THE DISEASES OF THE HORSE 



lime and mucus (see Fig. 101.) 3rd. Calculi of a white or yellowish colour, 

 rough externally and easily friable (see Fig. 102). 4th. Those which are 

 composed of regular layers, and which are harder than the second and third 

 varieties (see Fig. 103). These calculi sometimes attain an immense size, 

 weighing several pounds. 



The Symptoms are a difficulty of voiding the urine, which generally comes 

 away in jerks, the penis remains protruded from the sheath, which evidently 

 indicates that the horse feels as if his bladder was not relieved. Often there 



Fig. 102. Urinary Cat,ci-li. Fig. 103. 



is mucopurulent matter mixed with the urine^ which is rendered thick and 

 glutinous thei-eby, but this only happens in cases of long standing. 



yhe Treatment must be either palliative or curative. If the former, it 

 should consist in the adoption of the means employed for subduing irritation 

 and inflammation of the bladder which have been already described. The 

 cure can only be effected by removing the stone. This requires the perform- 

 ance of a difficult and dangei'ous operation (lithotomy), the details of which 

 can be only useful to the professed veterinary surgeon, and I shall therefore 

 omit them here. 



DISEASES OF THE GENERATIVE ORGANS 



Balanitis, or inflammation of the glans penis (fSdXavo^, glans), is not un- 

 common in the horse, being brought on by the decomposition of the natural 

 secretions, when they have been allowed to collect for any length of time. 

 At first there is merely a slight discharge of pus, but in process of time foul 

 sores break out, and very often fungous growths spring from them, which 

 block up the passage through the opening of the sheath, and cause consider- 

 able swelling and inconvenience. These are quite distinct from warts, which 

 occur in this part just as they do in other situations. 



The Treatment requires some skill and experience, because mild remedies 

 are of no use, and severe ones are not unattended with danger. The parts 

 must first of all be well cleansed by syringing, or if the end of the penis 

 can be laid hold of, by washing with a sponge. The following wash may 

 then be applied, and it should be repeated every day ; — 



Take of Solution of CliloriJo of Zinc (Burnett's Fluid) . . 2 drachins. 



Water 1 pint. Mix. 



