But the age of such adaptations there is still to come. The future is too much speculated upon; hence no system of agriculture has been yet adjusted to the peculiarities of climate and soil. Instead of studying and adopting the agriculture of similar climates, and the arts by which deficiencies in similar latitudes have from time immemorial been corrected: irrigation, for instance, has not been yet attempted; the natural fertility of the soil has alone been relied on, to compensate, in favourable, seasons, for the deficiencies of others, not favourable, perhaps, for the growth of wheat or barley, but the best imaginable for that of other kinds of productions. So generally available is the structure of the country for the reservation of water by dams, that a small number of these might be made to retain as much of the surface water as might even impart humidity to the atmosphere. This is because the channels of rivers are in general confined by high banks, within which many, or indeed most of them, might be converted by a few dams into canals. To such great purposes convict labour ought to have been applied, had it been possible to have allowed colonization and transportation to work together. But the undulations of the land present everywhere facilities for constructing reservoirs, which heavy showers would fill, and thus afford means sufficient for the purposes of irrigation, were not labour now too scarce there, to admit of the progress of colonization in a manner suitable to the spirit of the age, and character of the nation. The rich lands along the eastern coast, under a lofty range which supplies abundance of water for the purposes of irrigation, are well adapted for the cultivation of cotton and sugar, and, with labour, nothing could prevent these regions from being made extensively productive of both articles. Of the vine and the olive[*], it remains to be ascertained whether some parts of the country may not be made as productive as Andalusia, for instance, is, in the same parallel of latitude, in the opposite hemisphere. The want of hands alone retards the development of every branch of production derivable from industry in these regions. [* Five months ago, soon after my return to England, I gave to the Society of Arts two bottles of olive oil, the first samples ever produced, I believe, in Australia. The oil was made by Mr. Kid, superintendent of the Botanic garden at Sydney, from olives grown there, and seemed very clear and good.] Settled districts, back from the coast, at elevations of 1000 feet and upwards, have produced abundant crops of wheat of very superior quality; and, but for the non-completion of the roads between these districts and the capital, in consequence of the withdrawal of convict labour, the progress of agriculture in its adaptation to the soil and climate, and, as a field for the employment of British immigrants, had been much more advanced than it is there.