Leaving, we beat through between Swan Islands and the main, which we found to be a good channel,* a mile and a half wide, with an average depth of ten fathoms. After passing the western islet the south side of the strait should be given a wide berth, particularly on approaching Cape Portland, off which some islets with foul ground and a sunken rock at their extreme, extend two miles and a half. The summit of Swan Island, bears South 75 degrees East and Mount Cameron South 2 degrees East from the outer edge of this danger; which masters of vessels should remember, both in reaching to the southward in the strait, and in running for it from the westward. (*Footnote. Mount William bearing South 40 degrees East leads into the western entrance.) PRESERVATION ISLAND. Crossing Banks Strait we anchored under Preservation Island, lying between the western extreme of Clarke and Barren Islands; it owes its name to the preservation of the crew of a ship run ashore upon it in a sinking state. The value of the shelter this anchorage affords is in some measure destroyed by the presence of a sandbank extending off three miles from the eastern side of Preservation Island. Two small rocky islets lie a mile and a half off the western side of the latter, and several ugly rocks are scattered along the face of Barren Island, and as far as Chappell Group; on the outer isle of this group, which is low and level, the lighthouse bearing North 60 degrees West fifteen miles and a half forms a very conspicuous object, and is visible to the eye in clear weather from the top of Preservation Island. Over the northern point of the latter, towers the summit of Barren Island, forming a sort of double mount 2300 feet high. STRAITSMEN. I found Preservation Island inhabited by an old sealer of the name of James Monro, generally known as the King of the Eastern Straitsmen. Another man and three or four native women completed the settlement, if such a term may be applied. They lived in a few rude huts on a bleak flat, with scarce a tree near, but sheltered from the west by some low granite hills; a number of dogs, goats and fowls constituted their livestock. In this desolate place Monro had been for upwards of twenty-three years; and many others have lived in similar situations an equally long period. It is astonishing what a charm such a wild mode of existence possesses for these men, whom no consideration could induce to abandon their free, though laborious and somewhat lawless state.