318 PLEURO-PNEUMONIA. 



ear, even more readily than the hand, can detect the symp- 

 tom. In certain places the bellows' murmur of health is 

 entirely lost, and in its place there may be no sound per- 

 ceptible, or an unhealthy crepitation may be audible. If 

 both lungs be effected the animal endeavours to lay down, 

 being well-nigh incapable of longer standing ; but her en- 

 deavours to rest, though frequent, are of very brief dura- 

 tion. Should the beast, however, remain down for any 

 time, be certain then that only one lung is affected, and 

 the diseased side of the chest is low^ermost. The duration 

 of this stage is uncertain, but in longer or shorter space the 

 symptoms change. The tears cease. The eye brightens. 

 The visible mucous membranes assume a leaden tinge. 

 The breath is drawn with difficulty. Often respiration is 

 stopped for a short period, and then suddenly commenced 

 with energy, but almost immediately subdued into its former 

 quick, but short, and comparatively quiet method. The 

 coat now is very unthrifty. If it be tried along the margin 

 of the neck, or at the end of the tail, it will sometimes 

 come out by handfuls. Food, as before, is taken, but 

 rarely swallowed. Hoven may in this, or in the preceding 

 stage, have appeared. Water is declined, although from 

 the symptoms thirst must prevail; but probably liquids 

 are refused from their being the cause, when imbibed in 

 large quantities, of difficulty in breathing. From the mouth, 

 constantly a thick ropy mucous hangs. The tongue is 

 seldom retained within the lips ; and in this state the 

 animal may remain for a week, or only a few days, or for a 

 month. 



The last stage to the non-medical man is very deceptive. 

 The eyes, to a superficial observer, become more cheerful. 

 The breathing evidently less painful. The cough not so 

 frequent ; but blood and various substances are brought up 

 with the cough at times. The animal is inclined to feed, 

 but she may show a marked preference for dung and urine, 

 though sometimes she will take a mouthful of hay. The 

 hay is masticated with a relish almost too violent to be 

 perfectly natural ; but upon attempting to swallow, it sticks 

 in the gullet, and if not speedily removed with the probang, 

 the beast w^ould die hoven. The breath now stinks. The 

 action may be wild, but during it the animal may fall. 



