Copy.
BOARD OF
THRE
REC? JAN 9 18/4
HARBOUR DEPART
395
106
Surveyor Generals Office
Hong Kong 12 November 182
Memorandum on Light houses required by the Colonial Government of stingdong.
1.
Cape l'Aquilar great sea
Light (dioptris)
This should be a first order fixed White
Sea light illuminating
horizon of 270 degrees :
a circle the remaine
An arc
of
The
For three quarters of
go degrees would
be obscured towards land
and should
consist of a reflector towards the sea.
(Vide tracing R. 1.)
2.
All that portion above the level The floor of the light,
of
room, and which is
outlined in blue (Tracing R°2) onust be procured in England by the Crown Agents - for the Colonies. All that part of the light house below the level of the light room floor will be built of gravite maconry have been completed before the lanterns and apparatus.
and will