226 



DISEASES OF SHEEP. 



(181.) Trembling. Several affections are included 

 under the name of trembling or leaping-ill, all having, 

 in common, more or less of the symptoms which these 

 names denote. They may be considered as arising 

 from exposure to cold and damp, especially on long 

 fatiguing journies, as in bringing sheep from the High- 

 lands to the south of Scotland, when it frequently 

 prevails to so great an extent, on reaching the low 

 country, as to oblige the shepherd to leave eight or 

 ten behind him at every stage. Injuries of the loins, 

 either inflicted by themselves in jumping and running, or 

 by others from rough usage in the fold, are common 

 causes of the disease ; but in this variety the hind 

 quarters only are powerless. Another species is owing 

 to oppression of the brain from congestion, in this way 

 resembling incipient sturdy, and occurring only in very 

 fat sheep. 



(172.) Treatment of Trembling. The first variety 

 is best met by rest, shelter, and a supply of nutritious 

 food ; but as the animal is incapable, in many cases, of 

 collecting it, the shepherd must lift it from one rich 

 part of the field to another, so soon as it has cleared 

 away the grass within its reach. In the second kind, 

 as caused by accident, the sheep must be slaughtered, as, 

 should a cure be attempted, the treatment will be too 

 tedious and complicated to succeed in ordinary hands. 

 Copious blood-letting, and doses of Epsom salts, will 

 be found of most advantage in the third species ; but 

 if the sheep can be disposed of so much the better, as 

 this kind of trembling is almost certain, unless combated 

 by energetic depletion, to end in sturdy. 



(173.) Wood Evil is nothing more than a cramp of 



