310 BOARD OF AGRICULTURE. 



Chronic Glanders is by far the most common. Its period of 

 incubation is uncertain, and may vary from a few days to 

 even a year. At first, the general health is but little affected: 

 there is swelling of the lymphatic glands under the jaw, and 

 they become more or less hardened as the disease progresses. 

 A discharge occurs from one or both nostrils, which is at first 

 of a watery consistency, then becomes gluey, purulent, and 

 foetid. Ulcerations occur on the mucous membrane of the nose. 

 A horse, even with such symptoms, may otherwise appear 

 to be in perfect health. But when placed under unfavorable 

 circumstances, especially when worked hard and fed scantily, 

 symptoms of Acute Glanders appear, and then death soon fol- 

 lows. This form of the disease sets in suddenly, with symp- 

 toms of inflammatory fever ; the respiration becomes hurried, 

 and there is a copious yellow and purulent discharge from the 

 nose, and a watering from the eyes, which indicates the sever- 

 ity of the inflammation, and the certainty of approaching 

 death, in the next ten days. 



Chronic Farcy usually commences by an indolent inflamma- 

 tion of the lymphatic vessels and glands, which eventually 

 become red and tender. These glandular swellings chiefly 

 occur in the situation of the lymphatic valves, and are known 

 as farcy-buds. There is usually a well marked eruption on 

 the skin, with more or less sub-cutaneous or deep seated 

 tumors, which soon break, and thus secrete a foul and ichor- 

 ous discharge for many days, unless acute Farcy sets in, when 

 death inevitably follows. 



The acute forms of this disease are distinguished from the 

 chronic by the rapidity of their course, and the urgency of the 

 constitutional symptoms. Thus we have seen that these four 

 forms of this contagious malady are intimately associated with 

 each other. In fact, death seldom or never occurs in the 

 chronic forms ; an acute attack often follows which speedily 

 results in death. There is no hope in such a case, when the 

 symptoms are well marked. 



This is certainly one of the most loathsome diseases in the 

 whole catalogue of contagious affections. And may it not yet 

 be demonstrated, in the rapid strides of comparative pathol- 

 ogy, that it belongs to the class of specific fevers ? 



