The concentration of convicts in that island was intended, I believe, to follow out the Norfolk Island system, keeping the men under rigorous surveillance, and making them work at their respective trades, or as labourers. Even there, so near to Sydney, that labour, so available to lay the foundations of a colony, might have been employed with great advantage, in constructing a naval arsenal and hospital for our seamen on the Indian station, with a dry dock attached to it for the repair of war- steamers. Such a dock has been long a desideratum at Sydney, and private enterprize might, ere this time, have embarked in a work so essential to an important harbour, had not the Government always possessed the means of cheaply constructing such a work by convict labour, and been thus able at any time to have entered into such competition as might have been very injurious to a private speculator. At Cockatoo Island, blacksmiths, shoemakers, wheelwrights, were at work in their various avocations; all the shoes, for both the men and horses of the expedition, were made there; also one half of the carts, which proved equally good as the other portion, although that was made by the best maker in the colony, a celebrated man. The eagerness evinced by all these men, so confined in irons on Cockatoo Island, to be employed in an exploring expedition, was such that even the most reckless endeavoured to smooth their rugged fronts, and seemed to wish they had better deserved the recommendation of the superintendent. The prospect of achieving their freedom, by one year of good behaviour in the interior, was cheering to the most depressed soul amongst these prisoners. All pressed eagerly forward with their claims and pretensions, which, unfortunately for the knowing ones, were strictly investigated by Mr. Ormsby the superintendent, and Captain Innes, the visiting magistrate. The selection of such as seemed most eligible was at length made, after careful examination of the phrenological developments and police history of each; and it was not easy to find one without a catalogue of offences, filling a whole page of police-office annals. Still there were redeeming circumstances, corroborated by physical developments, sufficient to guide me in the selection of a party from amongst these prisoners. With them, I mixed one or two faithful Irishmen, on whom I knew I could depend, and two or three of my old followers on former journeys, who had become free.