294 



Average 

 \\ eight per 

 cubic foot of 

 firewood. 



09 X X 

 p p p 



— Tl-O 



Average 



steam 

 pressure 



X X X 



= £ £ 



_ ... r^. 



XXX 



Average time 

 taken to gel 

 50 lbs. steam. 



2 hours. 

 2 hours. 

 1 ( »8 hours. 



Consumption 

 in cubic feet 

 per hour. 





Consumption 

 in lbs. 

 per hour. 



X X X 



— — — 



<?f «ooc 



oc »n 

 m n (> 



= 1 



O iCO 



O 

 O 



s: 



V 



u 

 '£ 



Casuarina 



Bakau 



Ordinary 



