Lighting London 27 



which the apparatus suggested by the 

 scientist is installed. 



This is designed to impregnate the water 

 with a solution of chlorine gas. This is 

 such a powerful agent for the work in 

 view that only one part of the gas is 

 required to two million parts of water. 

 The marvel of the apparatus is that with- 

 out any intervention on the part of the 

 men in charge this impregnation goes on 

 continuously and always in the correct 

 proportions. 



Come to the boiler houses for a moment 

 and there see something which is well 

 worth while. There is little noise in those 

 vast houses; there are several. No constant 

 clanging of furnace doors, no opening and 

 shutting, no raking out, no shovelling of 

 coal to an insatiable giant. It is all done 

 by machinery and the pulverised coal streams 

 along and into the furnace. In order that 

 the men in charge or the visitor may see 

 what is going forward there is a small eye 

 through which the interior of the inferno 

 may be watched but only through tinted 



