112 Veterinary Medicine. 



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others are extended ready to hook on to the first animal that may 

 pass. Hence hunting dogs and cattle are especially liable to be 

 attacked, and hence too the habitual disappearance of ticks from 

 enclosed lands under cultivation. Some individuals have little 

 attraction for the tick and may traverse their haunts with impu- 

 nity. On the skin the ixode at once inserts its barbed chelicers 

 and dart where they remain firmly fixed while the maxillary 



