DISEASES DUE TO INTERNAL PARASITES. 223 



suffers from a depraved appetite, intense thirst, becomes poor in 

 flesh and dropsical, the belly becoming enlarged and tense. It 

 will suffer frequently from attacks of colic, and is affected with 

 a black diarrhoea, which generally terminates in death. 



post-)VIortcni. 



Examination of the fourth stomach of sheep which have 

 been attacked by these worms will find it containing hundreds 

 and perhaps thousands of twisted round worms closely packed to- 

 gether, their heads buried in the mucous membrane, which is 

 thickened and has a bloodless or pale appearance. 



Crcatment. 



Where the sheep are suspected to be suffering from worms 

 they should be dosed individually, unless the flock is so large as 

 to make it impracticable. 



Take. Kamala 3 drachms 



Linseed gruel 6 ounces 



Mix this is a sufficient dose for one large sheep. Lambs 

 can be given from one-half to two drachms of kamala according 

 to their age and size. Finlay Dunn in his work on veterinary 

 medicine, prescribes as follows. 



Take. Common salt 3 lbs. 



Powdered ginger ^ lb. 



Powdered salt petre i lb. 



Dissolve in three gallons of warm water, to which when 

 nearly cold add twenty-four ounces of turpentine. The dose for 

 lambs of from four to six months old is two ounces, the full 

 prescription being a sufficient quantity for 160 head of lambs. 

 Zurn recommends picrate of potash, claiming that it will be 

 found less irritating, and at the same time as efficient a vermicide 

 as kamala. The dose for a lamb is from three to five grains, and 

 for grown sheep twenty grains. It should be administered dis- 



