DISEASES OF THE RESPIRATORY ORGANS; 23 



a large yard. The food consisted of porridge and cooked 

 horseflesh, which were given either separately or boiled to- 

 gether. They got nothing else. The oatmeal was of good 

 quality, nor did I find in portions of the food removed from the 

 feeding-pans any thing which afforded the slightest clue to the 

 origin of the disease. 



" Pathology. — Post-mortem examinations were made in eight 

 cases. The following notes were dictated at the time : 



" Case i. — Autopsy eighteen hours after death. Body that 

 of a well-nourished, half-grown, fox-hound bitch. On open- 

 ing the thorax the lungs only partially collapse ; the lower 

 borders of the lobes are firm to the touch and dark in color. 

 The vessels in the lower mediastinum look full, and the 

 tissues in that region are blood-stained. Pericardium nat- 

 ural ; heart appears of normal size ; right auricle filled with 

 dark grumous clots, which extend into the vessels and are 

 here decolorized. Right ventricle distended with dark, semi- 

 coagulated blood ; the conus arteriosus is filled with a per- 

 fectly decolorized clot, which passes into the pulmonary artery 

 to the third and fourth divisions. The left auricle contains a 

 small coagulum. The left ventricle contains no blood, but 

 the whole cavity is occupied by a firm milk-white thrombus, 

 which is connected through the mitral valve with the one in 

 the auricle, while a prolongation from it extends into the 

 aorta. 



'■'■Lungs. — After removal, on inverting them, a. quantity of 

 dirty brown frothy fluid escapes through the larynx. 



" The anterior and middle lobes and the anterior half of the 

 posterior lobe of the right lung are solidified, being of a dark 

 reddish-brown color, and contrasting strongly with the un- 

 affected parts. The plural surfaces are smooth, and there is 

 no exudation. On section the lung tissue is of a dark red 

 color, the surface of the section finely granular, and bathed 

 with a quantity of reddish-brown serum. On close inspection 

 it is seen that the air-cells are uniformly filled with a solid 



