Q^ Hints respecting the 



of heating the bath, one or two of the least objectionable qf 

 Tjtrhich I shall describe. 



1. A contrivance of some ingenuity consists in suffering the 

 water for the supply of the bath to flow from a cistern above it, 

 through a leaden pipe of about one inch diameter, which is 

 conducted into the kitchen or other convenient place, where a 

 large boiler for the supply of hot water is required ; the bath- 

 pipe is immersed in this boiler, in which it makes many convo- 

 lutions, and, again emerging, ascends to the bath. The opera- 

 tion is simply this : — the cold water passing through the convo- 

 lutions of that part of the pipe which is immersed in the boiling 

 watery receives there sufficient heat for the purpose required, 

 and is delivered in that state by the ascending pipe into the 

 bath, which is also supplied with cold water and waste pipes as 

 usual. The pipe may be of lead, as far as the descending and 

 ascending parts are concerned ; but the portion forming the 

 worm or convolutions immersed in the boiler, should be as thin 

 as is consistent with security, in order that the water within it 

 may receive heat without impediment; it may therefore be 

 made of copper. 



This plan is only plausible and economical where a large 

 boiler is constantly kept at worlc in the lower part of the house ; 

 otherwise the trouble and expense of heating such a boiler, for 

 the mere purpose of the bath, render it unavailable. The 

 worm-pipe is also apt to become furred upon the outside by 

 the deposition of the earthy impurities of the water in which it 

 is immersed ; it then becomes a bad conductor of heat, is 

 cleansed with difficulty, and the plan is rendered ineffective. 

 This system, however, has been adopted in some particular 

 cases with satisfaction and success. 



2. A much more simple, economical, and independent mode 

 of heating a warm-bath by a fire placed at a distance from it 

 is the following, which I shall describe in detail, as it is found 

 to answer perfectly in private houses, as well as upon a more 

 extended scale in large establishments. It is certainly open 

 to some objections, but these are overbalanced by its pre- 

 ponderating advantages. A waggon-shaped boiler, holding 

 about six gallons of water, is properly placed over a small fur- 



