This island, which is the most southerly of the group, is rectangular in plan, one mile by three-quarters. High cliffs bound the south, east and west sides. The northern slopes descend gradually to the sea, where they terminate in cliffs about 30 feet high.

The highest point is on the east side of the island, and is about 1,000 feet above sea level. It is connected by a low featured col to the high land to the south-west. To the west, that is, towards the interior of the island, there is a depressed area which now has a small pond in it. It is probable that this was once the crater from which the lavas issued.

NIGHTINGALE IS

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Geology

One day only was available for work on this island, and orders were that the supposed guano deposits which were reported at the north side were to be examined. These deposits are of no economic value, and an analysis is here appended.

Certificate of Analysis.
Ogston and Moore,
Analytical Chemists,
89 Aldgate, London.
July 28, 1922.

Guano from Nightingale Island.