Any further communication on this aubject should be addressed to
THE SECRETARY,
TRINITY HOUSE,
TOWER HILL,
LONDON, E.C.,
and the following letter and number should be quoted:
L. 2071
Telegraphic Address—
DIOPTRIC, LONDON.
30
Trinity House, London, E.C.
7th August 1913.
2017
Ru
You
Sir,
21322/1913
55
RF40 131
In reply to your letter of 30th June last, relative to
the "Aga" System of lighting Buoys, which the Governor of
Hong Kong is proposing to adopt for the fairway Buoys st
that place, I am directed to acquaint you, for the infor-
Eation of r. Secretary Harcourt, that for localities
where there are no means for providing for a supply of
oil-gas for lighted Buoys, the Elder Brethren consider that
the "Aga" system of dissolved acetylene is preferable to
the "Wigham" method of lighting, provided a continuous supply
of necessary acetylene illuminant can be relied on, and if
the Colonial Authorities at Hong Kong can adapt the exist-
ing Wigham Buoys by making the necessary alterations for
the reception of the dissolved acetylene gas holders, these
Buoys will be more reliable in service and the intensity
of the light will be much greater than at present.
L
The Under Secretary of State,
The
Colonial Office,
Downing Street,
S. W.
: