INFECTIOUS DISEASES. 551 



lations, the ragged edges are beveled off, and the chancre is turned 

 into a simple ulcer which rapidly heals. 



The farcy buttons occur most frequently on the sides of the lips, 

 the sides of the neck, the lower part of the shoulders, the inside of 

 the thighs, or the outside of the legs, but may occur on any part of 

 the body. 



We have next an irritation of the^ lymphatic vessels in the neigh- 

 borhood of the chancres. Those become swollen and then indurated 

 and appear like great ridges underneath the skin; they are hot to 

 the touch and sensitive. The cords may remain for a considerable 

 time and then gradually disappear, or they may ulcerate like a farcy 

 bud itself, forming elongated, irregular, serpentine ulcers with a 

 characteristic, dirty, gray bottom and ragged edges, and pour out 

 a viscous, oily discharge like the chancres themselves. 



The essential symptoms of farcy are, as above described, the button, 

 the chancre, the cord, and the discharge. We have in addition to 

 these symptoms a certain number of accessory symptoms, which, 

 while not diagnostic in themselves, are of great service in aiding the 

 diagnosis in cases where the eruption takes place in small quantities, 

 and when the ulcers are not characteristic. 



Epistaxis, or bleeding from the nose without previous work or 

 other apparent cause, is one of the frequent concomitant symptoms 

 in glanders, and such hemorrhage from the nostrils should always 

 be regarded with suspicion. The animal with farcy frequently de- 

 velops a cough, resembling much that which we find in heaves — a 

 short, dry, aborted, hacking cough, with little or no discharge from 

 the nostrils. With this we find an irregular movement of the flanks, 

 and on auscultation of the lungs we find sibilant or at times a few 

 mucous rales. Another common symptom is a sudden swelling of 

 one of the hind legs ; it is found suddenly swollen in the region of the 

 cannon, the enlargement extending below to the pastern and above 

 as high as the stifle. This swelling is hot and painful to the touch, 

 and renders the animal stiff and lame. On pressure with the finger 

 the swelling can be indented, but the pits so formed soon fill again on 

 removal of the pressure. In severe cases we may have ulceration of 

 the skin, and serum pours out from the surface, resembling the ooz- 

 ing which we have after a blister or in a case of grease. This swell- 

 ing is not to be confounded with the stocking in lymphatic horses 

 or the edema which we have in chronic heart or in kidney trouble, 

 as in the last the swelling is cool, not painful, and the pitting on 

 pressure remains for some time after the latter is withdrawn. It 

 is not to be confounded with greasy heels. In these the disease com- 

 mences in the neighborhood of the pastern and gradually extends 

 up the leg, rarely passing beyond the neighborhood of the hock. The 



