312 CONTAGIOUS DISEASES. 



blush and red spots on the ears, the abdomen, and internal 

 aspects of the extremities. 



The reddened sjDots are at first hot and painful to the touch, 

 but afterwards become cold, humid, and insensible even to the 

 pricking of a pin. As the disease advances, tremblings and con- 

 vulsions are manifested, the animal grinds its teeth, the flexor 

 muscles of the limbs contract, and the animal stands upon its 

 toes. These symptoms are succeeded by paralysis of the posterior 

 extremities, or of the whole body, involuntary defa'cation and 

 passage of high-coloured and even bloody urine. The bowels 

 are at first generally torpid, but the faecal matters may be soft 

 and mixed with very black fcetid blood, and thick tenacious 

 mucus. Diarrhoea, however, often sets in ; the defalcation are 

 then profuse and exhaustive ; the breathing becomes catching 

 and convulsive, a painful cough is present ; the convulsions 

 become more aggravated, and may continue to the end, or tlie 

 animal becomes comatose, till death closes the scene. 



In some cases the first observable symptoms remain stationary 

 for a period varying from twenty-four to forty-eight hours ; 

 then the surface of the body becomes burning hot, and very 

 sensitive to the touch, notably at the sides and abdominal 

 walls. If touched, the animal cries with pain, and to these 

 signs are added tremblings, convulsions, grinding of the teeth, 

 and tetanic contraction of the muscles; succeeded by rapid 

 diminution of temperature. The conjunctivse become brown; 

 the eyes bleared ; the tongue dirty, thick, and bluish ; and the 

 animal, extended on its litter, incajDable of any regulated move- 

 ments, succumbs in from twenty-four to forty-eight hours. 



These symptoms are liable to various modifications, depending 

 upon the intensity of the fever and the various localizations of 

 the poison. In some cases, the virus seems to expend itself upon 

 the serous membranes, inducing peritonitis or pleurisy; sometimes 

 upon the mucous membrane, as expressed by bronchitis or 

 broncho-pneumonic congestion and haemorrhage, enteric con- 

 gestion and ulceration, sometimes even to perforation or rupture 

 of the bowel. 



In many cases the animal is amaurotic, wanders to and fro, 

 falls down, rolls and kicks, and seems to be in pain. Now and 

 then it will rise from its bed and give a piercing cry, the 

 whole body being involuntarily convulsed. 



