3?6 BOARD OF AGRICULTURE. 



To dispose of the lung parasites is a more difficult matter, 

 not because the worm is less easily killed, but because the 

 young worms and, above all, the ova encysted in the substance 

 of the lungs cannot be reached. The worms living free in 

 the windpipe and bronchia may be readily destroyed by caus- 

 ing the affected animal to inhale sulphurous acid or chlorine 

 gas. The agent first named is preferable as being less irrita- 

 ting than chlorine, as exercising, indeed, when sufficiently 

 dikited in air, a soothing and antiphlogistic action on the in- 

 flamed bronchial mucous membrane. It is best administered 

 by burning flowers of sulphur in a close house, but into which 

 air can be readily and freely admitted in case of need, and in 

 which both the patient and administrator are enclosed. It is 

 commonly advised to throw sulphur on hot coals, but, as the 

 latter give off carbonic acid and render the air unwholesome, I 

 have adopted the plan of twisting up a small piece of soft 

 paper into a cone, putting into this a pinch of sulphur and 

 burning it, holding meanwhile by the twisted point of the cone. 

 Tlie sulphur fumes are to be evolved in this way until the air 

 of the apartment is impregnated as strongly as the adminis- 

 trator and his patient can bear without violent coughing. 

 Breathing of the sulphur fumes should be kept up for half an 

 hour or as long as the air of the building remains impregna- 

 ted with it, and should be repeated at least three days in suc- 

 cession. At the end of a week, should the patient survive, 

 the smoking should be repeated to destroy the parasites which 

 have been hatched in the interval. The same process may 

 have to be repeated once more, though if the ova in.the lungs 

 are so numerous as to endanger life after this, the inflamma- 

 tion caused by their presence will probably speedily cut oflf 

 the patient. 



Chlorine gas may be set free by mixing in a cup or saucer 

 common salt, peroxide of manganese, and sulphuric acid. It 

 is equally efficient with sulphur smoke, but much more irrita- 

 ting and to be used with greater care. Indeed, this matter 

 of smoking by either agent should only be trusted to the most 

 careful and intelligent persons, otherwise serious accidents 

 may ensue. 



