CONTAGIOUS AND EPIZOOTIC DISEASES. 43 



ulceration on the membrane of the nose, and in the hmgs, etc., 

 and farcy by deposits of the same material and ulcerations of 

 the lymphatics of the skin. Each has its acute and chronic 

 form. The acute form usually results from inoculation, or in 

 weak and worn-out systems. Besides the common cause — 

 contagion, overwork, exhaustmg diseases, and impure air are 

 especially injurious. 



Symptoms of Acute Glanders. — Languor, dry, staring coat, 

 red, weeping eyes, impaired appetite, accelerated pulse and 

 breathing, yellowish-red or purple streaks or patches in the 

 nose, watery nasal discharge, with sometimes painful dropsical 

 swellings of the limbs or joints. Soon the nasal flow becomes 

 yellow and sticky, causing the hairs and skin of the nostrils to 

 adhere together, and upon the mucous membrane appear 

 yellow elevations with red spots, passing on into erosions and 

 deep ulcers of irregular form and varied colour, and with little 

 or no tendency to heal. The lymphatic glands inside the 

 lower jaw where the pulse is felt, become enlarged, hard, and 

 nodular, like a mass of peas or beans, and are occasionally 

 firmly adherent to the skin, the tongue, or jawbone. The 

 lymphatics on the face often rise as firm cords. An occasional 

 cough is heard, and auscultation detects crepitation or wheezing 

 in the chest. The ulcers increase in number and depth, often 

 invading the gristle or even the bone, the glands also enlarge 

 but remain hard and nodular, the discharge becomes bloody, 

 foetid, and so abundant and tenacious as to threaten or accom 

 plish suffocation, and the animal perishes in the greatest distress 



Symptoms of Chronic Glanders. — This is characterized by 

 the same unhealthy deposits and ulcers in the nose, varying 

 extremely in size and number, often indeed situated too high 

 to be seen; by the same viscid discharge, but usually much 

 less tenacious than in the acute form ; by the same hard, 

 comparatively insensible nodular glands on the inner side of 

 the jaw-bone; and a cough, which, however, is much more rare. 



