293 
{b) Consumption of wood per hour in cubic feet i'2l. 
(c) Average time to get 50 lbs : steam 2 hours. 
(d) Average steam pressure during 57? working hours 8ro 
lbs. 
(e) Average weight per cubic foot 64^ lbs. 
3. The ordinary firewood sent in by the Forest Officer was tried* 
on the 14th November, 604 pieces weighing 4,704 lbs. were sent 
out and consumed after 62 hours working. 
Result : — 
(а) Consumption of wood per hour, in lbs. 75 8. 
(б) Consumption of wood per hour, in cubic feet 1 ‘36 
(c) Average time to get 50 lbs. steam 168 hours. 
(d) Average steam pressure during 62 working hours 87 5 
lbs. 1 
(e) Average weight per cubic foot 55I lbs. 
4. As regards residue Bakau gave the least, the ordinary fire- 
wood most. 
5. It, should be noted that each of the lots of firewood had been 
sawn and stacked in the open for much about the same length of 
time. 
6. Attached is a separate sheet showing the above results in a 
tabulated form. 
7. The experiments were all made with the same roller. 
C. EDWIN SPOONER, 
State Engineer , Selangor. 
