492 GhENERAL DISEASES. 



side will be smaller and weaker than its fellow; and, frequently, 

 there will be a flow of tears from it. 



In chronic glanders, attempts at healing are sometimes made 

 by the ulcers inside the nostrils. 



A horse is said to have sub-acute glanders when the disease takes 

 a more or less chronic form, with ulceration in the nostrils. The 

 term is, now, seldom used. 



PULMONARY GLANDERS is a variety of the chronic form in 

 which the disease is almost entirely confined to the lungs. There 

 is neither discharge from the nose nor swelling under the jaw. 

 There is a dull, dry, soft cough ; the animal loses condition, is 

 weak and languid ; and the sounds of the chest are those of chronic 

 pneumonia. The animal may thus drag on a miserable existence 

 for months, and at last die of debility without exhibiting any 

 further symptoms of glanders, and yet be capable, all this time, 

 of infecting horses stabled near him. Or he may be suddenly 

 carried off by an acute attack. 



SYMPTOMS OF ACUTE FARCY.— In this form we have the 

 same signs of constitutional disturbance — shivering, rise of internal 

 temperature, etc. — as in acute glanders ; though, generally, not 

 to so great an extent. The local symptoms are manifested by a 

 painful swelling, usually, of one hind limb, although other parts 

 may be invaded. In a day or two, when the swelling somewhat 

 subsides, or without its taking place, nodules, or " farcy buds," 

 and enlarged lymphatic vessels (''cords"), of about the size of a 

 goose quill, appear on the surface. These tumours, which are hard 

 and painful to the touch, are generally clustered together and away 

 from the joints. They usually break out on the inside of the 

 thighs and fore-arms, or on the neck, and are about the size of a 

 marble. They rapidly soften and form unhealthy ulcers Avhich 

 have a tendency to run together, and are very similar to those met 

 with in the nostrils of glandered animals. An abundant discharge 

 of a dirty yellow colour, and tinged with blood, issues from these 

 ulcers and dries on their edges, or may overflow on the surface of 

 the part. The enlarged lymphatic vessels have, along their length, 

 prominent swellings, which mark the position of their valves that 

 have become inflamed from the presence of the virus in the fluid 

 which circulates through these vessels. These tumours, also, sup- 

 purate and form ulcers similar to the others. Thus, as pointed 

 out by Robertson, we have two sources from which the ulcers arise. 

 Both the fever and swelling are more or less remittent ; the latter, 

 sometimes, subsiding in one limb and then appearing in the other. 

 The animal rapidly loses condition and dies from exhaustion, or 

 from an acute attack of glanders, 



