In the voyage there, you are to endeavour to pass over the reputed site of the Eight Stones, within the limits pointed out by our Hydrographer; but keeping a strict lookout for any appearance of discoloured water, and getting a few deep casts of the lead.

At Tenerife you are to remain three days, for the purpose of rating the chronometers, when you are to make the best of your way to Bahia, in order to replenish your water, and from thence to Simon’s Bay, at the Cape of Good Hope; where, having without loss of time obtained the necessary refreshments, you will proceed direct to Swan River; but as the severe gales which are sometimes felt at that settlement may not have entirely ceased, you will approach that coast with due caution.

At Swan River, you are to land Lieutenants Grey and Lushington, as well as to refit and water with all convenient despatch; and you are then to proceed immediately to the north-west coast of New Holland, making the coast in the vicinity of Dampier Land.  The leading objects of your examination there will be, the extent of the two deep inlets connected with Roebuck Bay and Cygnet Bay, where the strength and elevation of the tides have led to the supposition that Dampier Land is an island, and that the above openings unite in the mouth of a river, or that they branch off from a wide and deep gulf.  Moderate and regular soundings extend far out from Cape Villaret:  you will, therefore, in the first instance, make that headland; and, keeping along the southern shore of Roebuck Bay, penetrate at once as far as the Beagle and her boats can find sufficient depth of water; but you must, however, take care not too precipitately to commit His Majesty’s ship among these rapid tides, nor to entangle her among the numerous rocks with which all this part of the coast seems to abound; but by a cautious advance of your boats, for the double purpose of feeling your way, and at the same time of surveying, you will establish her in a judicious series of stations, equally beneficial to the progress of the survey, and to the support of your detached people.

Prince Regent River appears to have been fully examined by Captain King up to its freshwater rapids, but as the adjacent ridges of rocky land which were seen on both sides of Collier Bay, were only laid down from their distant appearance, it is probable that they will resolve themselves into a collection of islands in the rear of Dampier Land; and it is possible that they may form avenues to some wide expanse of water, or to the mouth of some large river, the discovery of which would be highly interesting.

As this question, whether there are or are not any rivers of magnitude on the western coast is one of the principal objects of the expedition, you will leave no likely opening unexplored, nor desist from its examination till fully satisfied; but as no estimate can be formed of the time required for its solution, so no period can be here assigned at which you shall abandon it in order to obtain refreshments; when that necessity is felt, it must be left to your own judgment, whether to have recourse to the town Balli, in the strait of Allas, or to the Dutch settlement of Coepang, or even to the Arrou Islands, which have been described as places well adapted for that purpose; but on these points you will take pains to acquire all the information which can be obtained from the residents at Swan River.