104 DISEASES OE THE LUNGS. 



of these. The unabated continuance of the inflammation 

 will be denoted by the unrelieved state of the respiration ; 

 by the continued frequency or indistinctness, or both, of the 

 pulse ; by the gloomy aspect of the case altogether. Should 

 the breathing become on a sudden quickened and embar- 

 rassed; the pulse grow small and weak, and run up to a 

 hundred or more; the legs remain cold ; the mouth become 

 cold ; the eye acquire a peculiar desponding expression; 

 the lower lip hang pendulous; the horse become uneasy; 

 cast frequent and desponding looks at his flanks, and move 

 from place to place, or lie down but rise again almost im- 

 mediately, and begin perhaps to paw a little. Under such 

 circumstances we may make up our mind that the scene 

 before us will not hold out for long. In many cases of un- 

 relieved pneumonia, particularly in the congestive form, the 

 horse will maintain the standing posture up to the very 

 last, and then suddenly drop down and die. 



The TERMINATIONS of pucumonia, in the congestive form, 

 are resolution, stagnation, and obstruction, followed by mor- 

 tification. In the inflammatory form, the disease will end 

 in reddening, more or less deep and patchy, of the lung, 

 with eff'usion of bloody serous fluid into the parenchyma, 

 and frothy matters into the air-tubes; or in consolidation 

 and hepatization, succeeded by tuberculous formations and 

 abscess, and ending in softening and degeneration. 



Stagnation or blood, consequent on the obstruction 

 caused by the unrelieved distension of the blood-vessels, and 

 their own inability to contract upon the column of blood, 

 is the cause of death in such cases as succumb during the 

 congestive stage of pneumonia. The accounts of horses dying 

 in a few hours after attacks of what is miscalled ^' inflamed 

 lungs," are cases of this character, and are not inflammatory 

 in their nature. Their lungs are found gorged with blood, 

 very dark- coloured, and, where congestion has existed for 

 some days, really lax and rotten in their texture, and some- 

 times changed to that degree to be, in fact, gangrenous : 

 hence the description given of them by farriers and grooms, 

 and such people, as being '' as black as their hats," and as 



