APPENDIX 353 



boiler, is conducted down from the cylinder and admitted 

 to the disinfecting chamber at the bottom, being allowed 

 continuously to escape. This stove uses no pressure, and 

 cannot, therefore, be fitted with a recording-gauge. The 

 object of the chloride of calcium is to obtain a higher 

 temperature in the steam than that due to the pressure. 



Eeck's Disinfector. — This disinfector is made to work 

 with a pressure of one-ninth of an atmosphere, equal to, 

 say, If lb. per square inch. Air is evacuated in a manner 

 similar to that adopted in the Equifex disinfector, but the 

 thermometer recording the temperature at which disinfec- 

 tion is considered to begin is placed at the door of the 

 disinfector instead of in the discharge-pipe. The steam 

 escapes under a safety-valve during the operation, and is 

 more or less condensed at the end by the admission of 

 cold water. Thick objects are removed for drying to a 

 separate closet, which may be heated by the waste steam 

 from the disinfector. 



33 



