32 THE PRACTICE OF VETERINARY MEDICINE. 



proper feeding are of the utmost importance. Bran, 

 carrots, or anything the animal will eat, may be allowed 

 in moderate (juantities. In cases where the lungs become 

 gangrenous, as they sometimes do within a surprisingly short 

 time, the pulse becomes very weak and quick, the whole of 

 the body surface becomes deathly cold ; the animal persist- 

 ently stands up, turns to the door, is of a listless appearance 

 generally ; the countenance is of a haggard appearance. 

 The breathing now is not attended with as much difficulty 

 as in the earlier stages, the breath becomes foetid, and death 

 soon follows. Sometimes spasm of the diaphragm occurs 

 in connection with a case of congestion of the lungs. 



PNEUMONIA. 



Definition. — Inflammation of the parenchyma, or lung- 

 substance. This condition is a frequent result of pulmonarj^ 

 congestion, and is often associated with other diseases, as 

 pleurisy, bronchitis, etc. AYhen pleurisy and pneumonia 

 co-exist, the disease is termed pleuro-pneumonia. The 

 symptoms of the above-named diseases do not differ very 

 much, and the treatment for all is about the same. In 

 pneumonia one or both lungs may be affected. When both 

 lungs are involved in the inflammatory process, it is usually 

 as a result of congestion, and death is the usual termination. 

 In most cases one lung only is inflamed, and sometimes 

 only a portion, or one lobe, may be affected. When the 

 latter is the case it is known as lobular pneumonia. 



Several changes take place during the progress of a case 

 of pneumonia, which may be described as follows : 



First stage is that of hyperemia, characterized by an excess 

 of blood in the part. As a usual thing exudation speedily 

 follows, and solidification commences. The first stage may 

 be called arterial injection, engorgement, or congestion, the 

 first-named term being probably the best. When a portion 



