LOCAL I^'FLAMMATIO.\. 61 



much exhaustion prevails, tonics should be given. The 

 mildest should first be administered, and this is camomile, 

 in doses of from one to two drachms. Afterwards — 

 Camomile . . .2 drachms, 

 Ginger . . .2 drachms, 



Gentian . . .2 grains. 



Should the animal continue to improve, his diet may be 

 extended, and probably in three or four days he may have a 

 small quantity of corn, which may be increased as his 

 strength is restored. 



A cool and clean stable are the best means for preventing 

 predisposition to diseases of the lungs, both of which should 

 be scrupulously attended to. The heated air of a stable, 

 and the poisonous gas arising from the dung, prove most 

 injurious to the horse. 



LOCAL mFLAMMATION. 



Symptoms. — The symptoms of local inflammation are red- 

 ness of the parts, heat, pain, and swelling. 



Causes. — The redness is induced by the increased flow oi 

 blood through the vessels of the part afiected, in conse- 

 quence of an increased action of the blood-vessels. The 

 heat arises from the change gradually taking place in the 

 flow of blood, passing from the arterial to the venous con- 

 dition. So that if more blood be propelled through the 

 capillaries, more heat will consequently be produced in 

 that situation. Swelling is induced by the same means as 

 the redness, namely, from a fluid being deposited in the 

 contiguous substance ; and pain must be the efifect of dis- 

 tention and pressure produced, and the consequent disarrange- 

 ment of the nerves of the parts afiected. 



Eemedies. — Inflammation of every kind is caused by an 

 increased flow of blood through the vessels of the part 



