tHE DISEASES OP SHEEP. 289 



pest has been very small. This may be because 

 his flocks have almost always had shade of dark 

 bam basements in which to lie during the heat 

 of the day, conditions not conducive to the depo- 

 sition of the eggs that hatching in the nostrils 

 .of the sheep crawl up into the sinuses of the 

 nose and form the mature grubs. It may be^ 

 also, that well nourished sheep the more easily 

 repel the grubs, or endure them with least in- 

 jury. 



There is no cure for grubs, once they are 

 established. They can not crawl into the brain 

 of the sheep. They will come out of their own 

 accord in due time. They then turn into a fly 

 that in turn lays eggs for more grubs. You 

 cannot do anything except to feed well the 

 sheep. "Grub in the belly is a cure for grub 

 in the head " is an old saying. Tar on the noses 

 will let the sheep eat in comfort; once shep- 

 herds bored holes in logs and put salt in the 

 bottom of the holes and pine tar around them. 

 Sheep eating the salt got the tar. It needed 

 replenishing daily, or oftener. Easier is the 

 darkened shed for the sheep to lie in. 



LIVEE TLtTKE.— "the EOT." 



This terrible disease has caused in the past 

 great havoc in the old world. It is less prev- 

 alent there since the underdraining of their 

 lands. It was a parasitic disease, the parasite 

 passing one stage of its life in the liver of the 

 sheep, the other in the body of a snail. If there 

 is no water for the snail (a water species is 

 chosen) the flukes cannot propagate. There is 



