THE CIECULATORY SYSTEM. 225 



surrounding parts. In sucli cases the cause must primarily 

 be removed, and poulticing and other emoj 

 taken in regard to the poisoned wound./' S( 

 system will require stimulation and supporfc. The ab; 

 must be treated in the usual manner. \(^r ^ il ^ T ' ^ 



Lymphadenoma or Lymphoma is hyperi^^hy of lym- * P* 

 phatic glandular structure, resulting in tuW)ur3, wlifj"^^. 

 often are said to be malignant. This disease ^J! thU"^ 

 glands causes and accompanies leukeemia. 



Addendum 2. — Diseases of the Vascular Glands. 



The vascular or ductless glands are occasionally dis- 

 eased in the ox. The Spleen in this animal is situated 

 on the upper part of the rumen to the left ; it is oval and 

 flattened, and is smaller than in the horse. Its normal 

 weight is about two pounds. It undergoes enlargement 

 periodically during active gastric digestion, but it some- 

 times is considerably increased in bulk, having become 

 hypeiirophied ; in anaemic animals it is often found in an 

 atrophied state. 



Inflammation of this organ is described by several 

 British authors, but a careful examination of their ac- 

 counts makes it evident that they were dealing with 

 splenic fever. This error occurs especially in older works. 

 Cruzel describes it as frequent among working oxen. 

 Lymphomatous and scrofulous deposits may have their seat 

 in this organ. In cases of tuberculosis sometimes it is 

 firmly fixed to the stomach, liver, and intestines, by 

 tuberculous masses invested by peritoneum. 



Hydatid Cysts [Echinococcus veterinorum) sometimes 

 grow in the spleen, causing considerable diminution of its 

 proper structure. 



Lastly, Rupture sometimes takes place. The walls of its 

 venous sinuses give way, and the extravasated blood either 

 accumulates beneath the peritoneal capsule, or, that having 

 ruptured, escapes into the peritoneal sac. The former 

 condition may be seen in splenic fever, the latter results 

 from blows, falls, or other injuries. The symptoms of the 



15 



