and the Economy of Fuel. 63 



CHAPTER V. 



An Account of Experiments made with Boilers and 

 Fire-places of various Forms and Dimensions ; to- 

 gether with Remarks and Observations on their 

 Results, and on the Improvements that may be de- 

 rived from them. An Account of some Experi- 

 ments made on a very large Scale in a Brew house 

 Boiler. An Account of a Brewhouse Boiler con- 

 structed and Jitted up on an improved Plan. 

 Results of several Experiments which were made 

 with this new Boiler. Of the Advantage in regard 

 to the Economy of Fuel in boiling Liquids, which 

 arises from performing that Process on a large 

 Scale. These Advantages are limited. An Ac- 

 count of an Alteration which was made in the new 

 Brewhouse Boiler, with a view to the SAVING OF 

 TIME in causing its Contents to boil. Experi- 

 ments showing the Effects produced by these Altera- 

 tions. An Estimate of the RELATIVE QUANTITIES 

 OF HEAT producible from COKES, PIT-COAL, CHAR- 

 COAL, and OAK. A Method of Estimating the 

 Quantity of Pit-coal which would be necessary to 

 perform any of the Processes mentioned in this 

 Essay, in which Wood was used as Fuel. An 

 Estimate of the TOTAL QUANTITIES of Heat produ- 

 cible in the Combustion of different Kinds of Fuel ; 

 and of the real Quantities of Heat which are lost, 

 under various Circumstances, in culinary Processes. 



WHAT has been said in the foregoing chapter 

 will, I trust, be sufficient to give my reader a 



