208 The Farmer's Veterinary Adviser. 



the fibrous structure at the base of the ventricles connect- 

 ing them with the large arteries. If from a fall or violent 

 concussion the muscular walls usually give way, when found 

 in a relaxed condition, or the laceration happens at the 

 point of connection with the veins (vena azygos). Perfo- 

 ration from ulceration is seen in cows in connection with 

 sharp-pointed bodies that have been taken into the stom- 

 ach. Death is sudden in aU such eases. 



OTHEE EEAET-DISEASES. 



The heart is further subject to a great variety of dis- 

 eased growths and deposits and to parasites — JEchinococcus, 

 Cysticercus Tenuicollis (sheep and calf), Cysticercus Cellulosa 

 ond Trichina Spiralis (pig), Bainey s Cysts (cattle), and 

 Filar ia Immitis (dog). 



