154 THE ACTION OF HEAT. 
ing fair yellow sugar upon his own farm, and utilizing all 
waste products, he can successfully compete with the large 
manufacturer. 
Waste of fuel is one of the evils attendant upon the 
system of evaporation in short pans heretofore much used. 
In districts where wood and coal are scarce, the cost of fuel 
is often more than 50 per cent. of the current expenses. 
Experiment has proved that the expense of fuel, to supply 
the long evaporating ranges here recommended, is reduced 
to one-half of that which is ordinarily incurred. 
