HAEMORRHAGIC SEPTICAEMIA. 



139 



long to a gradually developing cerebro-spinal meningitis. The in- 

 ability to walk naturally was continued, the gait being irregular 

 and weak. The neck is often bent to one side and the muscles, 

 particularly of the face and neck, spasmodically contracted. Dur- 

 ing 'his period the animals are still quiet, moving around very 

 little ; but the eyes show a wild, unnatural expression. During 

 this period the animals may commence to chew in a nervous and 

 very persistent manner, with more or less profuse flow of saliva. 

 The temperatures may remain normal or subnormal. 



FIG. 54. HAEMORRHAGIC SEPTICAEMIA. (M. H. R.) 

 Haemorrhages on costal pleura. 



Later, there appears a third fairly distinct period of intense 

 nervous activity. The eyes continue to grow more wild and un- 

 natural ; the grinding of the jaws more active and more con- 

 stant ; the convulsions of face and neck muscles become more in- 

 tense ; then gradually a period of intense restlessness and activ- 

 ity, and death ends the scene. 



Post mortem symptoms. Meningitis involving the spinal 



cord or brain or both is plainly evident. In addition to this there 

 are haemorrhages involving the subcutaneous tissues, and lym- 



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