DISEASES OF THE BKAIN AND NEKVOUS SYSTEM. 157 



fleece is dry and dead to the touch, the nervous symptoms soon 

 setting in, generally evidenced by a loss of power in one or more 

 limbs, sometimes the whole side being involved, or even the 

 whole body of the sheep may be affected, appearing to be palsied 

 or attacked with tetanus, both of which diseases it simulates to a 

 considerable extent. The head and neck are attacked with 

 periodic spasms, which contract or draw them backwards with a 

 violent jerk, tending to constrict the oesophagus and threaten 

 strangulation on attempting to swallow liquids. A frothy 

 saliva is emitted from the motith, especially during the convul- 

 sive fits, which may occur every five minutes, and are ac- 

 companied by a very laborious and quick respiration, which sub- 

 sides on the termination of the spasm. A sheep may exist for 

 days in this condition, and should it not rally, death sooner or' 

 later ensues; even of those which eventually recover, many will 

 lose the use of a hind leg for a considerable time, drawing it 

 behind when moving, the leg feeling dead and cold to the touch. 

 Not infrequently tumors appear around a joint or on the fore- 

 legs and brisket, which on being opened are found full of pus. 



Creatmcnt. 



Treatment is entirely preventive, and consists in remov- 

 ing the flock to new and fresher pastures, feeding commer- 

 cial foods, as oil cake, etc. Give the lambs a sufficient dose of 

 Epsom salts to act as a purge, about four ounces for adult sheep. 

 In fact, stimulating, nourishing diet and good hygienic surround- 

 ings are all we can prescribe for this condition, owing to the lack 

 of knowledge as yet existing in reference to the cause of this 

 most destructive complaint. 



Simple paralysis — Palsy. 



Simple Paralysis — Palsy, is a loss of power either sensory 

 or motor, or both. It is a frequent disease in lambs, caused by 



