PSOROPTIC MAN(iE — SHEEP KCAB. 



617 



when the mites are two-thu-ds the size of the adults ; when seven to 

 eight days old the mites are mature and ready to pair ; several (three 



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r^ bo 



c3 



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or four) days are allowed for pairing; another generation of eggs 

 nipv be laid fourteen to fifteen days after the laying of the first gene- 

 mtion of eogs. Without going into all of the other observations on 



