ESTIMATE OF EXPENSES. 
Where to be 
FOUND. 
Estimate sent 
in by Captain 
Trotter 25 th 
Feb., 1840. 
476 
Brought forward 
5. Two small portable high-pressure steam- 
engines, to be adapted to circular 
laws for procuring a more expeditious 
supply of fuel for the steamers whilst 
up the river, and also to be applied 
to propelling a fan for the ventilation 
of the vessels, and for many other 
useful purposes, the exact expense of 
which cannot be correctly estimated, 
about .... £600 
£32,803 
£600 
Carried forward 
£33,403 
