634 THICK WIND. 



THICK WIND. 



This is a horseman's expression for that short, quick 

 breathing observed in animals that have once been subject 

 to acute inflammation of the lungs, or that, from some other 

 cause, have only a very limited portion of lung to breathe 

 with. 



Thick wind is a permanent unsoundness, and can only be 

 partially relieved by attention to the animal's diet, &c. 



PARASITIC AFFECTIONS OF THE NOSE THE SHEEP EOT. 



The most accurate information on the subject is furnished 

 as by Bracy Clark, and I do not therefore hesitate to trans- 

 cribe his remarks from his celebrated Memoir on the Bots : 



" The eggs of this species I have not yet seen, the sheep being very 

 shy under their attacks, which renders it difficult to approach them near 

 enough to see the actual operation ; the obscure colour of the fly also 

 adds to the difficulty. The sheep are exceedingly annoyed with them, 

 and to defend themselves get into the roads in dry hot weather, and 

 lie down along the dusty ruts, holding their heads close to the ground, 

 which makes it difficult for the fly to get at them ; at other times one 

 finds them standing up, with their heads held low, almost to the earth, 

 and the nose turned between the fore-legs, their nose being nearly in 

 contact with the ground. This mode of defence must render the attack 

 of the fly exceedingly difficult ; at other times, when in the open field, 

 they congregate together, forming a dense compacted mass or phalanx, 

 which, except to the exterior ones, is scarcely accessible to the fly, the 

 noses of the greater part of them pushed against each other, or held 

 nearly close to the ground ; in this way those placed in the centre 

 must be very secure. 



"The manner in which this species deposits its ova, has not, I 

 believe, been described ; nor is it easy to see, though close to the 

 animal at the time, exactly in what way this is accomplished, owing to 

 the rapid motion and obscure colour of the fly, and the extreme agita- 

 tion of the sheep ; but from the actions of the sheep afterwards, and 



