STERILIZERS 7 



If the temperature is allowed to go too high, there is danger of charring the cotton 

 plugs and also of causing the development of an empyreumatic oil which makes the 

 plugs unsightly and causes them to stick to the glass. Again we must be careful not 

 to open the door until the temperature has fallen to 6oC., otherwise there is danger 

 of cracking the glassware. Where gas is not obtainable, the hot-air sterilizer is not a 

 very satisfactory apparatus. 







FIG. i. Dressing sterilizer showing cylinder containing water (K) heated either 

 by gas or Primus kerosene lamps. 



Arnold Sterilizer. The Arnold sterilizer is to be found everywhere 

 and can be used on blue-flame kerosene-oil stoves as readily as with gas 

 burners. The most convenient form, but more expensive, is the Boston 

 Board of Health pattern. The ordinary pattern, with a telescoping 

 outer portion, answers all purposes, however. 



