With respect to the subjects of natural history that have been procured upon the voyage, it is much to be lamented that the small size of the vessel and our constant professional duties prevented my extending them. Of quadrupeds we saw but few. Birds were very numerous but the operation of skinning and preserving them would have taken up more time than could be afforded. A few insects, some shells, and a small series of specimens of the geology of the parts we landed at were among the only things obtained, excepting the extensive and valuable collection of plants formed by Mr. Cunningham which are now in the possession of Mr. Aiton, of the Royal Gardens at Kew; for which establishment it would seem that they were solely procured. It was in fact the only department of natural history in which any pains were taken and for which every assistance was rendered. A small herbarium was however collected by me, containing nearly five hundred species: they are in the possession of my respected friend Aylmer B. Lambert, Esquire, whose scientific attainments in the field of botany are well and widely known. It is to be hoped however that the few subjects offered to the scientific world in the appendix, through the kindness of my friends, will not be thought uninteresting or unimportant; and that they will serve to show how very desirable it is to increase the comparatively slender knowledge that we possess of this extensive country, which in this respect might still with propriety retain its ancient name of Terra Australis INCOGNITA. Whilst this sheet was going through the press accounts were received at the Admiralty from Captain J.G. Bremer, C.B. of H.M. Ship Tamar who was despatched by the government in the early part of last year (1824) to take possession of Arnhem's Land, upon the north coast of the continent, and to form an establishment upon the most eligible spot that could be found for a mercantile depot. Of the proceedings of this expedition the following particulars have been communicated to me by Lieutenant J.S. Roe, my former companion and assistant, who was appointed lieutenant of the Tamar upon her being destined for that service; and which, as the sequel of the voyage I have been describing, cannot be deemed irrelevant or uninteresting, since the place fixed upon by Captain Bremer was discovered during the early part of the said voyage.* (*Footnote. See volume 1.)