51 DEPARTMENT OF AGRICULTURE 



Kidneys. — 5 lbs. each, dark, brown, speckled, infiltrated. 



Spleen. — 2i lbs. mealy, doughy, fibrous, petechise. 



Liver. — 20 lbs. pale, firm, absence of fibrous adhesions to capsule or diaphragm. 



Heart. — lOi lbs., pale, firm, absence of endo-carditis. 



Lungs. — Slightly altered. 



Lymphatics. — Enlarged and softened. 



Pleural and pericardial sacs contained transudate fluid. The abdomen contained 

 an abundance of ascitic fluid. 



The subject was a heavy Clydesdale stallion, which in normal condition would 

 have weighed about 1,800 lbs. 



Case No. 35. Naturally Acquired Dourine. (Plate XIV,)— Heavy Clydes- 

 dale stallion (which covered the infected mare, No. 36). 



The first suspicions of the disease appeared during the autumn of 1906, and 

 according to the owner of the stallion consisted of a slight intermittent swelling of 

 the sheath. During the following winter and the spring and summer of 1907 inter 

 mittent swellings of the sheath were occasionally observed. By October the animal 

 had lost in flesh and developed a corneal opacity of the right eye, and a very consider- 

 ably swollen sheath. 



Intermittent swellings have continued to date, November 15, 1907, increasing in 

 extent. There is now oedema of lower surface of abdomen and some emaciation. 

 The hind legs are swollen and pus is escaping from the right hock. 



