316 THE PRACTICE OF VETERINARY MEDICINE. 



from the cleft of the frog. The pus is of a yellowish colour, 

 but very dark, and in some cases may very properly be 

 described as almost black, and is possessed of a horribly 

 offensive odour, which, if sraelled once, will never be for- 

 gotten. There may be lameness, but as a rule this symptom 

 is absent. There is usually tenderness present, in a degree 

 more or less marked, and if the parts come into contact 

 with any hard substance, as a stone, etc., the animal will 

 flinch, and perhaps go lame for a short distance. 



Treatment. — Remove the exciting cause. If tlie animal 

 has been running in a filthy stable or barn-yard, he should 

 be placed in quarters free from filth and dampness ; remove 

 the shoes, pare down the frog and sole generally ; thoroughly 

 cleanse the parts with a weak solution of phenol in warm 

 water, and soap, after which apply a poultice of lini farina, 

 or any good material, for a period of twenty-four or forty- 

 eight hours, at the end of which time, the irritation being 

 allayed, the poultice may be removed, and acid, carbol., in 

 the proportion of one part to sixteen of water, applied on 

 a pledget of tow. Cupri sulphas and zinc, sulphat. in solu- 

 tion are also useful. Zinc, chlorid., etc., may often be used 

 successfully, but what appears to be nearly a specific for 

 thrush is hydrarg. subchlorid., to be applied in sufficient 

 quantities by dusting it into the cleft and over the parts 

 affected ; this done, a pledget of tow and tar should be 

 placed over it, arranged so as to cause slight pressure, a 

 moderate amount of pressure on the parts being very useful. 

 Thrush is not usually diflScult to cure when the discharge 

 is not due to navicular disease. 



PUNCTURED WOUNDS OF THE FEET. 



Punctured wounds in the feet are of very frequent 

 occurrence, more especially in the neighbourhood of iron 

 works, nail factories, etc. These wounds are usually caused 



