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hurried, the mouth is hot, the temperature being elevated from 102^ 

 or 103° to 105° F. The usual symi^toms that accompany fever are 

 present, such as costiveness, scanty, dark-colored urine, etc. The 

 pulse is frequent, perhaps seventy or more a minute, and is hard and 

 wiry. The legs and eai s are cold. 



Percussion is of valuable service in this affection. The ribs may 

 be struck with the knuckles. By striking different parts you will 

 come to a spot of greater or less extent where the blows cause much 

 pain to be evinced. The animal ma}^ grunt or groan every time it is 

 struck. Another method of detecting the affected part is to press the 

 fingers between the ribs, each space in succession, beginning behind 

 the elbow, until you arrive at a place where the pressure causes more 

 flinching than at any other part. Auscultation is also useful. In the 

 first stage, when the surfaces are dry and rough, if the ear is placed 

 against different parts of the chest you will eventually come to the 

 affected part, which will be readily manifested by a friction sound 

 very much like that produced by rubbing two pieces of coarse paper 

 together. The sound appears immediately under the ear, and is dis- 

 tinct. No such friction sound occurs when the membrane is healthy, 

 as the natural moisture, heretofore mentioned, prevents the friction. 

 In many cases this friction is so pronounced that it may be felt by 

 placing the hand over the affected jDart. When the dry stage is suc- 

 ceeded by the exudation of fluid, this friction sound disappears. After 

 the effusion into the cavity takes place there sometimes is heard a 

 tinkling or metallic sound, due to dropping of the exudate from above 

 into the collected fluid in the bottom of the cavity, as the collected 

 fluid more or less separates the lung from the chest walls. 



Within two or three days the urgent symptoms are abated, owing 

 to the exudation of the fluid and the subsidence of the pain. The 

 fluid may now undergo absorption, and the case terminate favorably 

 within a week on ten days. 



If tlie quantity of the effusion is large, its own volume retards the 

 process of absorption to a great extent, and consequently^ convales- 

 cence is delayed. In some cases the symptoms manifest a serious 

 state. The pulse becomes more frequent, the breathing more hurried 

 and labored, the flanks work like bellows, the nostrils flap, the eyes 

 stare wildly, the countenance expresses much anxiety, and general 

 signs of dissolution are plain. After a time swellings appear under 

 the chest and abdomen and down the legs. These swellings are due 

 to transfusion of the fluid from within the chest into the surround- 

 ing tissues. The accumulation in the chest is called hj'dro-thorax 

 or dropsy of the chest. When this fluid contains pus the case usu- 

 ally proves fatal. The condition of pus within the ca\dty is called 

 empysema. 



Pleurisy may affect only a small area of one side, or it may affect 

 both sides. It is oftener confined to the right side. 



