i8o CLINICAL vetp:rinarv medicine and surgery. 



these gangrenous patches is not usually well defined, but shades off 

 into the adjacent hepatised tissue, which is gradually invaded by the 

 necrotic process. 



During the course of the disease the bronchial lymphatic glands 

 become swollen, but never of great size. 



The diagnosis of pneumonia is eas}-. The veterinary surgeon is 

 seldom called in until the second or third day after the onset. The 

 somnolence, depression, rapid, painful, and often moaning respiration, 

 and the yellowish colour of the conjunctiva are all significant. In 

 many cases pneumonia can be surmised after examination of the con- 

 junctiva and a glance at the flank. With a little practice in clinical 

 observation one is rarely mistaken. The rusty discharge, when present, 

 is pathognomonic. Auscultation and percussion indicate the position 

 and extent of the inflamed area. 



In bronchitis the cough is strong and paroxysmal, the discharge 

 muco-purulent, the respiration less frequent, and the fever less active. 

 From the point of view of their relative frequence pleurisy is rare as 

 compared with pneumonia ; and you know, furthermore, that differen- 

 tial symptoms exist. As to acute primary endocarditis, you may 

 possibly never meet with it. 



Provided the ordinary course and characters of pneumonia are 

 known, complications should early be detected. In a patient in which 

 resolution was deferred beyond the ninth day I discovered secondary 

 pleurisy, the onl}- case which I have seen during the course of the 

 present year. 



The prognosis of simple pneumonia is serious, on account of the 

 functional importance of the affected organ ; but except in the cases of 

 old, feeble, and emphysematous patients, and those suffering from 

 cardiac disease, pneumonia only proves fatal when followed by com- 

 plications, such as diffuse congestion of both lungs, oedema, suppura- 

 tion, gangrene of the lung, or inflammation of the heart muscle. 



Careful treatment usually pre\'ents such accidents. The mortality of 

 uncomplicated cases is scarcel}' 5 per cent. 



When simple inflammation of the lung de\'elops regularl}' and is 

 unattended with complications it tends towards resolution. Prompti- 

 tude in treatment is very important. If the disease is not recognised 

 at the beginning it ma}- become greatl}' aggra\-ated b}- work. 



The animal is isolated in an airy box, which should be kept at a 

 moderate and regular temperature, and is kept warm b}' abundant 

 clothing. If appetite is retained, mashes, barle}- or oatmeal gruel, hay 



