82 , SPECIAL VETERINARY THERAPY 



cocoanut. No tissue (with the possible exception of 

 bone) is resistant to the infection. 



A very common form occurs in the lower corner of 

 the eyelids with the formation of great quantities of 

 the typical granules in and around the lacrymal sack 

 and at times extending down the lacrymal duct. In 

 this location the infection is usually handled success- 

 fully by careful and thorough removal of the granules 

 with a very small eye curette and the subsequent treat- 

 ment consisting of daily application of a mild oint- 

 ment of yellow oxide of mercury. Two or three cur- 

 ettements may be necessary. 



In all other parts of the body this disease is very 

 resistant to treatment. The tendency is towards the 

 rapid and extensive formation of fibrous tissue, which 

 in advanced cases becomes almost cartilaginous in 

 consistency. Whether this is the direct result of the 

 infection or whether it is an effort on the part of the 

 tissues to wall off the invading organism I do not 

 know. At any rate, this development takes place very 

 rapidly and causes the formation of a tumor in a short 

 time. The surface, of this tumor usually remains bare 

 and raw and the characteristic granules or small "grav- 

 els" can be plainly seen. If the tumor is incised they 

 will be seen to extend in every direction and frequent- 

 ly some of these granules are found in apparently 

 healthy tissue entirely outside the borders of the 

 tumor. 



The surface of the tumor is kept raw by almost con- 

 stant rubbing on the part of the horse. Itching seems 

 to be all but intolerable and if the lesion is in a loca- 



