S70 DISEASES OF DOGS : MADNESS. 



are also to be attributed to its producing a peculiar 

 inflammatory state of the substance of the brain, 

 which augments its bulk, and consequently some 

 degree of compression follows. The membranes 

 of the brain are found more particularly affected 

 with inflammation, as are also the lungs, in cases 

 where dogs have been very irritable, fierce, and 

 furious, and have made a peculiar howling noise, 

 and been inclined to leave home, and bite other 

 dogs. The stomach, from the functions of the 

 nerves being deranged, has lost the power of di- 

 gesting food ; and other important organs of the 

 body are as much disordered. Most of the inter- 

 nal parts, as we have before noticed, are found in 

 a state of inflammation, and the temperature of 

 these parts is augmented from the increased re- 

 action of the constituent parts of the blood caused 

 by the morbid excitement of the nerves acting 

 upon that blood. The thirst seenjs to arise from 

 the increased heat of the internal parts of the 

 body, and from a defect of the secretions of the 

 mouth, as well as froi^ the peculiar state of the 

 system. When the intestines are found much in- 

 flamed, the hind parts have been observed to be 

 very weak, and I suspect the spinal marrow in 

 these cases to be also affected. 



The most certain precaution against madness in 



