For my guidance I received the following instructions from the Admiralty and the Colonial Department:—­

Admiralty Office, 4th February, 1817.

Sir,

My Lords Commissioners of the Admiralty being informed of the arrangements of Earl Bathurst, His Majesty’s principal Secretary of State for the Colonial Department, for employing you in a survey of the unexplored parts of the Coast of New South Wales, have commanded me to express their concurrence therein, and to convey to you the following instructions, to which you are to conform yourself, in addition to those which you may receive from the Secretary of State.

The arrangements for providing you with a proper vessel and crew, and other necessaries for the prosecution of the service having been made by the Colonial Department, my Lords have no directions to give you on these subjects, but to recommend you in the conduct and discipline of the vessel which may be intrusted to your care, to conform, as far as may be practicable, to the established usages of the navy, and to the regulations for preserving health, cleanliness, and good order, which have been established in His Majesty’s ships when employed in Voyages of Discovery.

In order to assist you in the care and use of the timekeepers and instruments with which their Lordships have directed the Hydrographer of this department to furnish you, and to follow your orders in all other particulars relating to the service, my Lords have directed Messrs. Frederick Bedwell and John Septimus Roe, two young gentlemen, who have been recommended to them as peculiarly fitted to be of use to you, and for whose appointment you have expressed your wishes, to accompany you and to be under your command.

The principal object of your mission is to examine the hitherto unexplored Coasts of New South Wales, from Arnhem Bay, near the western entrance of the Gulf of Carpentaria, westward and southward as far as the North-west Cape; including the opening, or deep bay called Van Diemen’s Bay, and the cluster of islands called Rosemary Islands, and the inlets behind them, which should be most minutely examined; and, indeed, all gulfs and openings should be the objects of particular attention; as the chief motive for your survey is to discover whether there be any river on that part of the coast likely to lead to an interior navigation into this great continent.

It is for several reasons most desirable that you should arrive on this coast, and commence your survey as early as possible, and you will therefore, when the vessel shall be ready, lose no time in proceeding to the unexplored coasts; but you are at liberty to commence your survey at whichever side you may judge proper, giving a preference to that which you think you may be able soonest to reach; but in case you think that indifferent, my Lords would wish you to commence by the neighbourhood of the Rosemary Islands.

Either on your way out, or on returning, you should examine the coast between Cape Leeuwin and the Cape Gosselin, in M. De Freycinet’s chart; and generally you will observe, that it is very desirable that you should visit those ranges of coast which the French navigators have either not seen at all, or at too great a distance to ascertain and lay down accurately.