INFECTIOUS DISEASES. 551 



lations, the raL'geil e(l<ri's are Itcxcli'd oil", ami the chancre is turned 

 into a simple ulcer which rapidly heals. 



The farcy buttons occui" most fre(]uently on the siiles of the lips, 

 the sides of the neck, the lower i)art of the shoulders, the inside of 

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

 the body. 



Wo have next an irritation of the lymphatic vessels in the neigh- 

 borhood of the chancres. Those become swollen and then indurated 

 and a])pear Ijke ^rreat 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, serj^entine idcers 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 ]ilace in small quantities, 

 and when the ulcei"s are not characteristic. 



Epistaxis, or bleeding from the nose without previous work or 

 other apparent cause, is one of the frequent concomitant symjitoms 

 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 nlles. Another common symptom is a sudden swelling of 

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

 cannon, the etdai-gement extending below to the pastern and above 

 as high as tiie stifle. This swelling is hot and i)ainfiil to tl»e touch, 

 an«l renders the animal stiff and lame. On pressure with the finger 

 the swelling can be indented, but the ])its so formed soon fill again on 

 removal of the i)reHfsuie. 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 blistei- or in a case of grease. This swell- 

 ing is not to be confounded with the stcx'king in lymi)hatic 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 di.sease com- 

 mences in the neighborhood of the jnistein and gradually extends 

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



