Being desirous to know if there were a practicable channel through Endeavour Strait, by which the inconvenience before alluded to, of passing the reef fronting Hammond's Island late in the afternoon, might be avoided, we proceeded in that direction, passing along the north-eastern extreme of the continent, and between the Possession Islands we entered Endeavour Strait. This termination of the shores of Australia, being level and of moderate elevation, presents nothing remarkable, save a peak over Cape York and fronting the Possession Isles.

COOK'S ISLAND.

It has an inhospitable appearance, being apparently similar in formation with York Isles, and subsides rapidly to the South-West forming the south side of Endeavour Strait, where it scarcely reaches an elevation of fifty feet: contrasting forcibly with the high rocky land of the opposite side of the Strait, formed by the largest of the Prince of Wales Islands; upon which former navigators not having bestowed a name, we conferred that of the immortal navigator. Not but that the Strait known by the name of his ship, is quite sufficient to recall the mind of posterity to his perils and dangers in these seas; but that we his humble followers in the great cause of discovery might add our mite to the wreath of glory which must ever encircle the name of Captain Cook.

On the North-East extremity of this island is a remarkable peak, in the shape of a horn, called by him Horn Hill. Captain King having only passed between the eastern of the Possession Isles, little was known of the western shores. A few angles and bearings were accordingly taken, as we passed between them to assist in remedying this deficiency.

ENDEAVOUR STRAIT.

There was no impediment to our passage through the Strait, until we got abreast of Wallis Isles, Cape Cornwall bearing East by North 1/2 North; when the water shoaled to four fathoms and a half. Finding by hauling up on either tack, that we were on a ridge extending from the Cape, we ran to the westward, until we could cross it, which we did in three and a half fathoms, North Wallis Island bearing South-West five miles.

BOOBY ISLAND.

I saw at the time from the masthead, a blue streak of water to the southward, still affording hopes of there being a deep outlet to Endeavour Strait; but as the day was far advanced, with a fresh breeze from East-South-East, it was not deemed prudent to get the ship entangled in shoal water; therefore, after crossing the ridge extending off Cape Cornwall we steered North-West 1/2 West for Booby Island, in regular soundings of six and seven fathoms, and late in the afternoon anchored nearly a mile from its western side, a flagstaff bearing South 65 degrees East. This we found on landing had been erected in 1835 by Captain Hobson,* of H.M.S. Rattlesnake, who at the same time placed in a large box, made for the purpose, a book with printed forms, which every ship passing filled up, with the addition of such remarks as were thought of consequence. Over this box in large letters were painted the words Post Office, a name by which Booby Island must be quite familiar to all who have navigated these seas; ships being here in the habit of leaving letters for transmission by any vessel proceeding in the required directions. I noticed a similar practice prevailing among the whalers at the Galapagos Islands in the Pacific. We are indebted for the book to the public spiritedness of an Indian army officer. The beneficial results of the plan were experienced by ourselves, as here we first heard of the Port Essington expedition, having passed eight months previously; also of the schooner Essington, that left Sydney in advance of the expedition for that place, having succeeded in determining the fact of the non-existence of the other young D'Oyly, one of the passengers of the ill-fated Charles Eaton. This result of the enterprising merchant-man's researches, fully bears out the fact mentioned by Captain King, on the authority of the Darnley islanders, that he shared the fate of his parents, being devoured by their savage captors. All the ships which have recorded their passage in the book, appeared to have entered the Barrier between the latitude of 11 degrees 30 minutes and 12 degrees 10 minutes; generally about 11 degrees 50 minutes reaching Sir Charles Hardy's Island the same day. They all spoke of a strong northerly current outside the reef, in some instances of nearly three knots. The time occupied in making the passage from Sydney by the outer route, varied from fourteen to twenty days, it being certainly shorter than the inner, though attended with much greater risks. One objection made against the latter is the necessity of anchoring every evening, somewhat laborious work to the crews of merchant ships; this might be obviated in some measure by using a light anchor, which could be done with perfect safety in the still waters within the reefs. We found two barques at anchor, which had arrived on the preceding day. In accordance with a practice very generally observed, they were giving themselves a short period of repose and relaxation after the anxieties and danger of the outer passage; which, short as it is, has doubtless sprinkled grey hairs over many a seaman's head.

(*Footnote. Afterwards Governor of New Zealand.)

ITS DESCRIPTION.