DISINFECTION B Y HE A T 47 



point is surely free from living disease germs dan- 

 gerous to man. 



All articles of clothing which have been subjected 

 to the ordinary operations of the laundry are safely- 

 disinfected. 



Vessels containing the infectious discharges of per- 

 sons suffering from cholera, typhoid fever, etc., if 

 thoroughly treated with boiling water may be disin- 

 fected, together with their contents. To make sure 

 of this the quantity of boiling water used should be 

 three or four times greater than the contents of the 

 vessel, and from ten to twenty minutes should be 

 given for the disinfecting action of the hot water. 



Articles of bedding and clothing which would be 

 injured by immersion in boiling water may be disin- 

 fected by exposure to steam in a properly constructed 

 disinfecting chamber or " steriliser." 



Clothing may also be disinfected by dry heat if 

 freely exposed in a closed chamber to the action of 

 hot dry air, at a temperature of 125 C. for two 

 hours. 



