and the Economy of Fuel. 



81 



The following are the results of the experiments 

 made with the boiler No. 2 : 



This set of experiments was made at the same time 

 with the foregoing set, namely, on the I3th October, 

 1 794, and they were made in the order in which they 

 are here registered. In the last but one (No. 20), the 

 economy of fuel in the process of heating water was 

 carried farther than in any other experiment I have 

 ever made. 



In the following experiments, which were made in a 

 large copper boiler fitted up on my most improved 

 principles, belonging to the kitchen of the House of 

 Industry, the economy of fuel was carried nearly as far. 



