Ships detained during the westerly monsoon, as far to leeward as the meridian of 125 degrees, would find an advantage in putting into Hanover Bay, and remaining there until the wind should veer round: by which they would avoid the necessity of beating to windward, over such dangerous ground as extends between this part to Timor; and, by being to the southward, out of the strength of the westerly winds, at the latter end of February and beginning of March, when southerly and south-east winds prevail on the coast, they might much earlier effect their passage to the westward. The beach of Hanover Bay is situated in latitude 15 degrees 18 minutes 21 seconds, and 13 minutes 40 seconds West of our observatory at Careening Bay, which makes its longitude 124 degrees 47 minutes 5 seconds East of Greenwich. August 11. The next morning (11th) we left Hanover Bay and steered out at the distance of a mile and a half from the western shore. After passing round the western head, we entered a deep opening, and, running into it for some distance between a rocky shore on either side, came into an extensive basin, in the centre of which was a high island which we saw at a distance last year, and then called the Lump, from its shape. As a set of bearings from this island was desirable, the vessel was anchored abreast of it at about a mile and a half from the shore; having landed upon it in time to observe the sun's meridional altitude in the artificial horizon, we ascended its summit and obtained the desired bearings; we also discovered Freycinet's Island on the horizon, bearing North 13 degrees 42 minutes West; this island was distinguished easily by its form, which is that of an inverted basin. A large island lies in the centre of the entrance of the port, by which two channels are formed; the westernmost has several patches of rocks in it, but the eastern one, which we used, appeared to be clear and free from danger, excepting a rocky shelf projecting from the eastern shore for not more than three quarters of a mile. In the afternoon we examined the former, and from a summit at the south-west end of the island in the entrance obtained another set of bearings. Afterwards we sounded its channel, and found a deep passage, but too narrow and intricate to be preferred to the eastern channel. Whilst one boat was thus employed, Mr. Baskerville went to examine an opening at the bottom of the port, which he reported to be a strait, trending round to the South-West for six miles, beyond which his view was intercepted by the next projecting point. The strait, which he called after Captain R.H. Rogers, R.N., is sprinkled with many islands and dry reefs of great extent. August 12. On the 12th I was occupied in laying down the plan of this place, which, on account of the day, was honoured with the name of our most gracious king, Port George the Fourth. August 13.