vel ft ee 
901 
producing power and could probably be used in a producer plant with 
excellent results. 
Physically, the Philippine coals are ideal to handle in a producer 
furnace. They do not swell, they burn steadily, form no clinkers, and 
the ash would easily be removed automatically. Since the quantity of 
ash in a producer plant is of no material consequence, it seems probable 
that dirty coals could be used in this way to great advantage. It is also 
probable that the outcrop coals used in a producer-gas plant may become 
as valuable as the best grades of coal used in a steam plant. 
With a satisfactory scheme for the utilization of the upper and poorer 
grade of coal, the mines can successfully be operated and the deeper 
coal can be used for steaming where a producer gas plant is impracticable. 
For the production of power, the utilization of our low-grade and outcrop 
coals for producer gas seems much more promising than any other scheme 
which has yet been devised for their use. 
