78 General Principles of Veterinary Medicine. 



pected. Palsy, spasms and convulsions point in the same 

 direction. A prominent and swollen condition of both eyes 

 occurs in congestion of the brain ; and a projection of the 

 haw (the winking membrane of the eye) is a sure sign of 

 lockjaw. Snoring or stertorous breathing is a pretty sure 

 symptom of brain disease. 



2. Signs of Diseases of the Breaiking Organs. 



Here cough is the most important symptom. It is moist 

 in catarrh, colds, and other diseases where there is a discharge 

 from the lining membranes of the air passages ; and dry in 

 the first stages of colds, in pleurisy, broken w^ind, roaring, 

 and when, as occasionally happens, it does not depend on dis- 

 ease of the breathing organs, but is, as it is called, sympathetic 

 of other complaints, especially indigestion, w^orms, and liver 

 disease. 



Rapid, irregular, or difficult breathing is present in most 

 affections of the lungs ; and w^hen the motion of breathing is 

 more visible than usual in the belly, it is a sign that the act 

 is painful, as in pleurisy and rheumatism of the walls of the 

 chest. 



Running from the nose and mouth is generally associated 

 with this class of complaints. 



3. Signs of Diseases of the Digestive Organs. 



When the appetite is much greater than natural, it is 

 . usually a sign of worms, or irritation of the stomach. In 

 diarrhoea, the discharges from the bowels are frequent and 

 watery; in constipation, infrequent, dry and hard. When 

 an animal passes blood, it is generally from dysentery, piles, 

 ulcers in the bowels, or a rupture. Swelling of the belly, 

 unusual discharges of wind, and fits of giddiness, are commoD 

 in colic and indigestion. 



