124 INFLAMMATION OF THE BRAIN AND LUNGS. 



Sub-Class II. 



INFLAMMATION OF THE BRAIN (PHRENITIS). 



Symptomatic phrenitis only is found in the canine catalogue ; 

 but of this there are some varieties, dependent principally on the 

 diseases which they are accompaniments to. The epilepsy of dis- 

 temper is an instance of cerebral inflammation, known as well by 

 post-mortem examinations as by the consequences : at the same 

 time it may be urged, that the phrenitic symptoms are seldom of 

 sufficiently long continuance to assure us that the inflammatory 

 state is not conjoined with some other irritations : I shall leave 

 this to the judgment of those who are disposed to study the de- 

 scription of distemper. — Rabies in a few instances produces some 

 decisive violence, and some mental alienation in the dog, as we 

 know by his attack on men and brutes that he has been acquainted 

 with, and also by the morbid appearances which present themselves 

 after death. — The epilepsy attendant on wormsy and that which 

 attacks dogs after long confinement, are probably compounded of 

 a spasmodic attack on the sensorium and of determination of blood 

 to it : in both cases there are some phrenitic symptoms occasionally 

 present. — See these several subjects in the body of the work, 



Sub-Class III. 

 INFLAMMATORY AFFECTIONS OF THE THORACIC VISCERA. 



PNEUMONIA, OR INFLAMMATION OF THE LUNGS. 



Pneumonia is not an unfrequent complaint among dogs, and 

 in some years it rages in an epidemic form, when it destroys num- 

 bers ; in other cases it may be directly traced to the action of cold 

 on the body. I have seen it brought on, in a great number of 

 instances, by the cruel practice of clipping or shearing rough 

 dogs in cold weather. Throwing dogs into the water, and after- 

 wards neglecting to dry them, is also not an uncommon cause : 

 shutting a dog out for the night houseless ; in fact, any unusual 



