DISEASES OF THE HOESE. 135 



lung- tissue. There is a comljination of the symptoms of both diseases, 

 but to the ordinary observer the symptoms of pleurisy are the most 

 obvious. The course of treatment to be pursued differs in no manner 

 from that given for the affections when they occur independently. 

 The symptoms will l)e your g-uide as to the advisability of giving oil 

 and laudanum for the pain if the pleurisy is very severe. Do not 

 resort to it unless it is necessary to allay the pain. 



BEONCHO-PLEURO'PNEUMONIA. 



This is the term or terms applied when bronchitis, pleurisy, and 

 pneumonia all exist at once. It is imi)ossible for one w^ho is not an 

 expert to diagnose the state with certainty. The apparent symptoms 

 are the same as when the atiimal is affected with pleuro-pueumonia. 



SUPPURATION AND ABSCESS IN THE LUNG. 



There are instances, and especially when the surroundings of the 

 patient have been bad or the disease is of an especially severe type, 

 when pneumonia terminates in an abscess in the lung. Sometimes, 

 when the inflammation has been extreme, suppuration in a large por- 

 tion of the lung takes place. Impure air, the result of improper ven- 

 tilation, is among the most frequent causes of this termination. The 

 symptoms pf suppuration in the lung are chronic pneumonia, a solidi- 

 fied area of lung tissue, continued low fever, and, in some cases, offen- 

 sive smell of the breath, and the discharge of the matter from the 

 nostrils. 



MOETIFICATION. 



Gangrene, or mortification, means a death of the part affected. 

 Occasionally, owing to the intensity of the inflammation or bad treat- 

 ment, pneumonia and pleuro-pneumonia terminate in mortification, 

 which is soon followed by the death of the animal. Perhaps the most 

 common cause of this complication is the presence of a foreign body 

 in the lung, as food particles or medicine. Rough drenching or drench- 

 ing through the nostrils may cause this serious condition. 



HEMOPTYSIS, OR BLEEDING FROM THE LUNGS. 



Bleeding from the lungs may occur during the course of congestion 

 of the lungs, bronchitis, pneumonia, influenza, purpura hemorrhagica, 

 or glanders. An accident or exertion may cause a rupture of a vessel. 

 Plethora and hypertrophy of the heart predispose to it. Following 

 the rupture of a vessel the blood may escape into the lung tissue and 

 cause a serious attack of pneumonia, or it m.ay fill up the bronchial 

 tubes and prove fatal by suflocating the animal. When the hemorrhage 

 is from the lungs it is accompanied by coughing; the blood is frothy, 

 of a bright red color, and comes from both nostrils; whereas when the 



