VARIETIES, SYJIPTOMS, AND COURSE OF THE DISEASE. 91 



both these forms of the disease result from the character of 

 the fever and the phenomena attendant on the consecutive 

 local lesions. 



1. Regular or Benign Strangles. — This is a comparatively 

 unimportant disorder, ushered in and accompanied by simple 

 continued fever, which, however, is not invariably well marked, 

 and which when pronounced reaches its acme with the abscess, 

 defervescing with its decline and healing. 



There are ordinarily mild catarrhal symptoms. The animal 

 is rather dull, has a cough, with disinclination to eat, and 

 when swallowing there is soreness of the throat. There may 

 in some cases be a slight discharge of cellular matter from 

 the nose, and frothy saliva from the mouth. The head is 

 poked forward, and shortly swelling may be observed in the 

 submaxillary space, or at the base of the parotid gland. 



The swelling or infiltration may occupy the whole of the 

 space between the branches of the jaw on one or both sides 

 of the inferior part of the larynx. It may exist circumscribed 

 at only one side of the space or throat ; or it may be 

 diffused. 



The swelling steadily increases in size, becomes more painful 

 to the touch, hard and defined, until the fluctuation indicates 

 the presence of pus, which on evacuation is followed by subsi- 

 dence of the swelling, amelioration of the general and local 

 symptoms, and usually restoration to robust health. 



Cases may not unfrequently be met with where the 

 general disturbance is less marked, and where the only ab- 

 normal feature attracting attention is the appearance of the 

 swelling in the submaxillary space, which is subsequently 

 developed into an abscess, with the formation and discharge 

 of pus. 



In others, again, the constitutional disturbance, although 

 not excessive, is much more protracted, the condition of 

 ill-health continuing until the appearance and maturation of 

 the characteristic abscess. Occasionally the local inflammation 

 in connection with the structures in the vicinity of the larynx, 

 the glands, and connective tissue, is more marked and earlier 

 developed than the constitutional disturbance. In such the 

 symptoms are often alarming : the oedema of the glottis, and 

 general infiltration of the submucous tissue of the larynx. 



