Upon my communicating the result of their report to His Excellency, Governor Macquarie, he agreed with me in thinking that, as her repairs would take up so much time, it would be better to purchase another vessel, and as a brig was then in the harbour, that appeared to be every way suited for my purpose, she was examined by my order by Mr.Mart, the Dromedary's carpenter, who reported so favourably of her, that, by the governor's permission, she was purchased and fitted for the voyage.

She was built of teak, of one hundred and seventy tons burden, and had lately received a very considerable repair at Calcutta; so that, excepting a few trifling defects and alterations, she was quite fit for sea.

Her name was altered at the suggestion of Governor Macquarie to that of the Bathurst.
By this change we gained a great addition to our comforts; and, besides increasing the number of our crew, were much better off in regard to boats; for we now possessed a long-boat, large enough to carry out and weigh an anchor, or save the crew if any accident should happen to the vessel; a resource which we did not possess in the Mermaid.
A further addition was made to our party by the appointment of Mr.
Perceval Baskerville, one of the Dromedary's midshipman; but Mr.Hunter the surgeon, who had volunteered his services in the Mermaid during the last voyage, was superseded by Mr.A.Montgomery, who had lately arrived in charge of a convict ship.
Our establishment now consisted of the following officers and men: Lieutenant and Commander: Phillip Parker King.
Surgeon: Andrew Montgomery.
Master's Mates (Assistant Surveyors): Frederick Bedwell.
John S.Roe.
Midshipman: Perceval Baskerville.
Botanical Collector: Allan Cunningham.
Steward.
Boatswain's Mate.
Carpenter's Mate.
Sail Maker.
Cook.
Seamen: 16.
Boys: 5.
Total: 32.
1821.

May 26.
After experiencing many tedious and unexpected delays in equipping the Bathurst, notwithstanding our wants were few, and the greater part of our repairs were effected by our own people, we were not completed for sea until the 26th of May, when we sailed from Port Jackson upon our fourth and last voyage to the north coast, accompanied by the merchant-ship Dick (the same vessel in which we had originally embarked from England): she was bound to Batavia, and being ready for sailing at the time of our departure, requested permission to accompany us through Torres Strait, which, since it would rather prove an assistance to us than cause any delay in our proceedings, was acceded to on my part with much satisfaction.

In the mean time the Mermaid, our late vessel, had been thoroughly repaired, fresh fastened with copper spikes, and fitted out; and, before we sailed, had been sent to sea to carry the first establishment to Port Macquarie, on which service she had been wrecked.
She was, however, afterwards got off the rocks and repaired, and is now a very serviceable vessel in the colony.
Boongaree, the native who had formerly accompanied us, volunteered his services whilst the vessel was preparing for the voyage, which I gladly accepted; but when the day of departure drew nigh, he kept aloof; and the morning that we sailed, his place was filled by another volunteer, Bundell; who proved not only to be a more active seaman, but was of much greater service to us, than his countryman Boongaree had been.