Treatment oj Lung Wornfis, 377 



tioned, should lead to the careful examination of the lungs and 

 windpipe of the first victim, for the purpose of discovering the 

 parasite. The complaint is often mistaken for a sort of 

 "scours," but if attention is paid to the short, husky, often 

 almost incessant cough, which is nearly invariably present in 

 all forms of the disease, such an error will not be committed. 



Treatment. — The preventive treatment is to feed the 

 lambs on fresh pastures ; second and third year crops are to 

 be specially avoided, if they have been previously grazed by 

 sheep. In damp seasons, hilly and well-drained fields should 

 be chosen ; and abundance of nutritive food furnished. 

 Rock salt should be placed in the fields, or common salt 

 given frequently. 



To cure the disease, the worm should be attacked both in 

 the lungs and in the bowels. To destroy them in the lungs, 

 chlorine gas has been recommended for inhaling ; but it is 

 unsafe, and sulphurous acid gas is equally efficient. The 

 animals are placed in a roomy, closed shed or stable, and the 

 gas obtained by burning sulphur, as recommended on page 

 29. Should the chlorine gas be preferred, it is to be 

 managed as follows : — 



Get a pound of chloride of lime (bleaching powder), and 

 mix it with water in a shallow dish, to about the thickness 

 of cream. The sheep should be collected in a closed shed or 

 stable, and the operator enters, provided with this dish of 

 chloride and a bottle of common sulphuric acid (oil of vitriol). 

 He pours the acid very gradually on the chloride, by which 

 the chlorine gas will be rapidly disengaged. He continues 

 it as long as he can conveniently breathe the air thus 

 saturated with the gas, and when he can do this no longer 

 with comfort, he retires, taking his apparatus with him. 

 The sheep are left to breathe the gas for half an hour, and 

 should be subjected to it twice a day for several days. 



Both when in the lungs and intestines, turpentine inter* 



