58 MANUAL OF EQUINE MEDICINE. 



differing from the acute form, is more liable to develop con- 

 stitutional signs at the later, than during the earlier, stages 

 of the disorder. Usually there is a discharge — never absent 

 where nodules or ulcers are developed — from one or both 

 nostrils. The discharge is at first like that of common 

 catarrh, but it gradually becomes thicker, viscid, pasty, and 

 mingled with greenish yellow purulent matter, and has a 

 tendency to adhere round the nasal orifices. Pathological 

 changes similar to those described under the acute form 

 occur in the mucous membrane of the nose, and in addition, 

 parts of the latter occasionally become denuded of epithelium, 

 the place of which is taken by a soft granular substance. 



There is great tendency for the lesions not to heal, but 

 to progress, and spread to the cartilage and the bone. The 

 ulcerated and denuded surfaces may heal by cicatrization, 

 the cicatrices themselves being sometimes slightly depressed. 

 Although the nasal ulcers may heal, yet the disease may 

 still remain, and nodules be present in the lungs and else- 

 where. Eventually, also, the nasal ulcers may again resume 

 activity. 



Even when the sores have cicatrised the power of infection 

 is not lost. 



The lymphatic glands in the intermaxillary space enlarge, 

 and are somewhat painful, but become gradually indurated, 

 fixed to the jaw, and distinctly nodulated. 



Chronic glanders is liable suddenly to manifest acute 

 symptoms, especially during the latter stage of the disease. 



ACUTE FARCY. 



Definition. — Farcy is a form of glanders in which the 

 cutaneous connective-tissues and superficial lymphatics, gene^ 

 rally or conjointly, are especially liable to be involved. 



Cause. — Farcy occurs as the result of direct inoculation 



