274 PLEURISY. — PLEURODYNIA. 



he is up and down frequently, and wanders unconsciously 

 around the box, — till, worn out by the continuance of the dis- 

 ease, he at length falls, and, after short ineffectual efforts to 

 rise, struggles and dies. Should the result prove more fortunate, 

 marked but gradual abatement of the symptoms, in the most 

 severe cases, is perceived after the fourth day. The abdo- 

 minal spasm ceases — there is more freedom in the respiration 

 — the pleuritic twitchings do not recur — the grunt is no more 

 heard — the pulse becomes distinct, soft, and less frequent — the 

 body regains its flexibility— the horse moves with more liberty 

 — the appetite returns — he lies down, and gradually recovering, 

 is generally within three weeks to be considered well, though 

 unfit for work." * 



Pathognomonic Symptoms. — The pathognomonic symp- 

 toms of Pleurisy are of a character which, if recognised, place 

 the nature of the disease beyond dispute ; they are tlie presence 

 at the onset of the disease of frictional sounds, arising from the 

 rubbing of the lungs against the roughened surfaces of the 

 pleura. 



Symptoms op Pleurodynia, — One principal difference 

 between Pleurodynia and Pleurisy is, that in Pleurisy the dis- 

 ease constantly changes from being better at one time to being 

 worse at another. In Pleurodynia the animal moves in a very 

 rigid manner; he steps short and slow— he is dejected — the 

 back is arched — the skin over the surface of the body exhibits 

 tenderness, whether handled roughly or delicately— he grunts 

 a good deal — great tenderness is often present upon one or 

 both sides of the chest, the skin of which presents that state 

 of corrugation I have before spoken of. The respii-ations are 



* Field's Veterinary Records. 



