Lord Howe Island its zoology, geology, and physical characters. No. 5. The physical and geological structure of Lord Howe Island
[Excerpt from Introduction]. The geographical position of Lord Howe Island has been already described, and it has been shown that under this name are included a number of outlying rocks. Chief amongst these are the Admiralty Islets to the north; Mutton Bird Island to the east; Rabbit or Goat Island, within the Lagoon, on the west; and the solitary pinnacle, Ball's Pyramid, away to the southeast.
The outline of Lord Howe Island itself is roughly crescentic, or, as very appropriately termed by Mr. H. T. Wilkinson, J.P., "boomerang-shaped." The length, as the crow flies, is six or seven miles, or, taking into consideration the inequalities of the surface, probably nearly double that distance. The average width is one mile, but at the southern end of the island it is considerably more. The island has been estimated, by Mr. Charles Moore, to contain 3,220 acres, 2,000 of which would be capable of cultivation. Personally I do not think that much more than a third of this amount will ever be fit for the agriculturist, and then only under certain conditions....