-ted for the purpose of
promoting a more intimate
acquaintance with this matter.

I am,
        Sir,
            Your very humble serv^t ,
        Jn Barrow

[Captain Hayes' letter]

His Majesty's Ship Magnificent
Barque Roads Nov. 6, 1812

Sir
        I have had the honor to receive
from the Lords Commiƒsioners
of the Admiralty a printed copy
of a Statement prepared by Cap^t
Flinders of the Royal Navy
upon the Subject of the variation
of the Magnetic Needle under
certain circumstances of situation
in a Ship, with their Lord=
=Ships command to pay
particular attention thereto, and
as opportunities shall offer to
make Experiments on board His
Majesty's Ship under my