42 Umhelliferse [ch. hi 



dilatation of pupils, rolling of eyes; laboured respiration, diminished 

 frequency of breathing, irregular heart action ; loss of sensation, con- 

 vulsions, uncertain gait, falling, and at the end complete paralysis. 

 Death occurs after a few hours. The poison acts on the motor nerve 

 endings, causing paralysis, dyspnoea resulting from paralysis of the 

 pectoral nerves, and acceleration of the heart from that of the in- 

 hibitory fibres of the pneumogastric. 



Small quantities cause in the horse a Httle prostration, yawning, 

 acceleration of pulse, dilatation of pupils and sometimes muscular spasms 

 of the neck and shoulders. Large quantities cause nausea, unsuccessful 

 attempts to vomit, gritting of teeth, accelerated respiration and dyspnoea, 

 and muscular tremors commencing in posterior members and spreading 

 to anterior members and spine. There is next difficulty of locomotion, 

 sweating (but not continual), falling, paraplegia, then paralysis, loss 

 of feeling, lowering of temperature, rapid pulse, increasingly difficult 

 respiration, and death from stoppage of respiration. 



With cattle there is ptyalism, cessation of digestion, bloating, con- 

 stipation, weakness and stupor. Pregnant cows have been observed 

 to abort; the milk of cows has an unpleasant flavour. There are 

 bloody evacuations in some instances in the case of the ox. In cows 

 Chesnut says that there was "loss of appetite, sahvation, bloating, 

 much bodily pain, loss of muscular power, and rapid, feeble pulse." 



In sheep the abdomen is tucked up, the animal has a dazed appearance, 

 there is dilatation of pupils, unsteady gait, the hind Hmbs being dragged, 

 coldness, and death after a few convulsive movements. 



In the jpig there is prostration and inability to move, coldness, slow 

 breathing, livid mucous membranes, imperceptible pulse, paralysis, 

 particularly of the posterior members, and no convulsions. 



REFERENCES. 

 4, 16, 52, 53, 73, 81, 82, 91, 128, 14], 161, 203, 205, 213, 238. 



