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It is considered, however, that, not only in the interests of Imperial Defence, but also in the interests of the Colony itself, full data as to the work of Triangulation in the field for Hong Kong and the Leased Territories should be recorded at the War Office.
At the moment the only data available is the bare list of Geographical and Rectangular Co-ordinates as enumerated in List A.
value:-
Such data as the following would be of great
(a) The Projection on which the Rectangular Co-ordinates
were computed.
(b) Description of each Trig. point so that at any future
date it can easily and accurately be located.
(c) Log. lengths of the sides.
or coordinate bearings or both of every side, (a) True bearings of the sides from each trig. point.
(0) Convergence of the grid at each trig. point. (e) Height of each point.
I am,
Sir,
Your obedient Servant,
shinter to thame-
Col