The dipping needle being landed on the S.W.point of the islet, was adjusted as nearly as possible on the magnetic meridian by the sun's bearings, and found to vibrate freely, when the face of the instrument was directed to the east or west.

The mean dip it gave was 80 deg.

37' 50".

When the instrument was removed from the N.W.to the S.E.
point, about twenty yards distant, and placed on the meridian, the needle ceased to traverse, but remained steady at an angle of 60 deg..

On changing the face of the instrument, so as to give a S.E.and N.W.
direction to the needle, it hung vertically.