536 



Account of Experiments 



Quantity of Fuel consumed in these Experiments. 



In heating the oven first time • 



second time 



third time 



fourth time 



fifth time . 



sixth time 



Total .... 



Employed in keeping up a small fire near 

 the mouth of the oven while the bread 

 was putting into it 



Total consumption of wood in the six 

 experiments 



845 16 



34 16 



880 



The results of these experiments show, in a striking 

 manner, how important it is to the saving of fuel in 

 baking bread to keep the oven continually going, 

 without ever letting it cool ; for in the first experi- 

 ment, when the oven was cold, when it was begun to 

 be heated the quantity of wood required to heat it was 

 366I lbs. ; but in the sixth experiment, after the oven 

 had been well warmed in the preceding experiments, 

 the quantity of fuel required was only 74I lbs. 



As in these experiments 2393 lbs. 13 loths of bread 

 were baked with the heat generated in the combustion 

 of 880 lbs. of wood, this gives to each pound of bread 

 1 1^ loths, or 11 of a pound of wood. 



In the fifth experiment or batch, 186 loaves weigh- 

 ing (at 2 lbs. 5i loths each) 304 lbs. were baked, and 

 only 80 lbs. of wood consumed, which gives but a trifle 

 more than ^ of a pound of wood to each pound of bread, 

 or I lb. of wood to 4 lbs. of bread. 



As each loaf weighed 2 lbs. 16 loths when it was put 



