222 Veterinary Medicine. 



turning of the nos2 from the open window or the retention of the 

 recumbent position for a length of time. These symptoms will 

 become more patent day by day, and the absorption of the effused 

 products and the clearing up of the lung may be traced by the 

 gradually decreasing area of dullness and of the circular line of 

 crepitation as ascertained by percussion and auscultation. 



If on the contrary the disease takes an unfavorable turn, some 

 such signs as the following will manifest it : Increasing rapidity 

 and embarrasment of the breathing ; smallness and indis- 

 tinctness of the pulse, which is increased to perhaps lOo beats 

 per minute ; tumultuous heart's action, the impulse of which is 

 strongly felt behind the left elbow ; a more laborious working of 

 the flanks ; frequent despondent looking toward the flanks ; paw- 

 ing wath the fore feet, lying down, and as suddenly rising again ; 

 permanent coldness of the extremities ; hanging head with great 

 dullness and despondency of expression ; dull, .sunken, lusterless 

 eye ; hanging lower lip ; leaden hue of the nasal mucous mem- 

 brane ; convulsive twitching of the muscles of the .surface ; 

 reeling in gait, and extension of the crepitation over all the still 

 pervious lung. 



SuBACUTK Pneumonia. This term is employed to designate 

 that subdued or milder form of the disease which sometimes 

 arises spontaneously and at others follows the acute. 



In this variety the characteristic symptoms may be much less 

 marked and the disease is less ea.sily recognized. There is some 

 acceleration and quickness of pulse, lifting of the flanks and heat 

 of the mouth and body generally. There are alternations of heat 

 and cold of the surface and extremities, a rough, unthrifty coat, 

 hidebound, a dull, listless moping manner and the same symp- 

 toms on auscultation and percussion as in the acute form. 



The changes take place slowly but the disease may prove ob- 

 stinate and is often followed by permanent alterations in the lungs. 

 Rheumatic affections of the limbs, inflammation of the feet, and 

 other diseases frequently supervene during the course of this form 

 of the affection. 



The terminations of pneumonia are : — by death ; resolution 

 with absorption of exuded products : — splenisation ; abscess ; 

 gangrene ; permanent consolidation with organization of ex- 

 uded products. The disea.se will sometimes lapse into the chronic 

 form. 



