96 VETERINARY 



after suppuration has taken place ; and, on open* 

 ing them, matter resembling pus sometimes, mixed 

 with blood, is discharged, and the opening forms 

 an ulcer, which is difficult to heal. 



When, in its later stages, the horse loses his 

 appetite, and becomes very much debilitated, the 

 tumours break through the skin, and discharge 

 a foetid sanies, and the nostrils become affected, 

 which frequently terminates in glanders and death. 



Before we endeavour to point out the cause of 

 farcy, an attempt to investigate the use of the 

 lympatics, which form a principal part of the ab- 

 sorbent system, may tend to throw some light on 

 the subject. For as nature has formed vefsels on 

 the surface, and in the cavities of the animal body, 

 for the purpose of secretion ; so it has been equally 

 provident in furnishing a number of vefsels which 

 perform the office of absorption, and which coun- 

 teract any error of secretion. 



Thus when fluids, or any other matter which 

 may injure the animal ceconomy, become extra- 

 vasated, or thrown out in any of the internal ca- 

 vities, or into the cellular membrane, it is fre- 

 quently taken up by the lymphatics, and carried 

 into the circulation to be thrown out by stool* 

 urine, or perspiration. 



