. Fig. 3.—lookout harbour, ei<eph.\nt isi,.\nd. sheer from the sea to about 200 ft. It is flat-topped and in area about 500 yds. by 150 yds. The rock of which it is composed appears to be of a trachytic nature and may be the northern limit of the flows from Nightingale which have already been mentioned ; it may, however, be a centre of activity such as is de- scribed as existing on Middle Island. Inaccessible Island Eleven miles to the north-north-west of Stolten- hoff is this island, which is the most northerly one of the group. It is pear-shaped in appear- ance, being about three miles by
. Fig. 3.—lookout harbour, ei<eph.\nt isi,.\nd. sheer from the sea to about 200 ft. It is flat-topped and in area about 500 yds. by 150 yds. The rock of which it is composed appears to be of a trachytic nature and may be the northern limit of the flows from Nightingale which have already been mentioned ; it may, however, be a centre of activity such as is de- scribed as existing on Middle Island. Inaccessible Island Eleven miles to the north-north-west of Stolten- hoff is this island, which is the most northerly one of the group. It is pear-shaped in appear- ance, being about three miles by two and a half mUes. In its general features it is a basin—a great caldera the south-eastern side of which has been blown out. A cone rises to about 1,500 ft. towards the north-east with dip slopes to the west and escarpments to the east. The highest point on the long ridge which runs down the longer axis of the island is about 2,915 ft. above sea-level. The west side of the ridge goes down in a long slope to the cliffs bordering the sea. The escarpments on the east side are cut by three or four glens; the largest one, about half-way down the coast, gives access to the interior. The most striking feature lookmg up the glen is the great stock of an acid intrusive rock which rises to 2,270 ft. It can best be described in the words of Scott : " Shooting abruptly from the dell Its thunder splinter'd ; Thick mosses and bracken grow in the glens and two types of tree were found. In the smaller glen, to the south of the main one, there is a species of Sophora,^ » G. H. Wilkins, , , NaturaUst.
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