36 FISTULA AND POLL-EVIL 



The afferent vessels empty directly into the 

 thoracic duct. 



The prescapidar glands receive afferent ves- 

 sels from the skin of the anterior part of the 

 withers and also from the superficial muscles 

 of the neck. The afferent vessels lead to the 

 posterior cervical nodes and thence to the tho- 

 racic duct. 



