The country about Rose Hill, which I have formerly mentioned as requiring not much labour in clearing, from its being covered only with lofty, open woods, without any underwood, and which I then observed ran to the westward about twenty miles, has since been travelled over by several gentlemen, who admit that that kind of country does extend near the distance above-mentioned to the westward, but in a north and south direction, it does not extend more than three or four miles, when you come again into barren, rocky land, wholly unfit for cultivation; in short, as I have walked over a good deal of ground since I have been here, and have frequently travelled from Botany-Bay to Broken-Bay along the sea coast, I can with much truth declare, that I have never met with a piece of ground any where sufficient for a small farm, which has not been so rocky as to be unfit for cultivation; the best of it appears to be a poor, miserable, sandy soil; and what must subject those who live on it to much inconvenience is, the very great scarcity of water. Upon my arrival here from Norfolk Island, all the streams from which we were formerly supplied, except a small drain at the head of Sydney-Cove, were entirely dried up, so great had been the drought; a circumstance, which from the very intense heat of the summer, I think it probable we shall be very frequently subject to. This frequent reduction of the streams of fresh water disposes me to think, that they originate from swamps and large collections of rain water, more than from springs. When the sudden vicissitudes of heat and cold are considered, we might be too apt to pronounce this country very unhealthy; but near four years experience has convinced us that it is not the case: it is no uncommon thing at Rose Hill, and frequently at Sydney, for the thermometer to be in the morning at 56 deg. or 60 deg.; and by two hours, afternoon, at 100 deg., sometimes 112 deg.; and after sun-set, down to 60 deg. again; this is, with the thermometer exposed to the air, in a shade, and not within the house. When I went last to Rose Hill, I left Sydney at five o'clock in the morning, and rowed up the harbour, a great coat was then comfortable; at noon I walked over the cleared ground, the thermometer was then more than 100 deg.. Norfolk Island is also subject to such sudden changes, but is also remarkably healthy. I do not think I can give a stronger proof of the salubrity of the climate, than by observing, that I never saw the constitutions either of the human race or any other animal, more prolific in any part of the world; two children at a birth is no uncommon thing, and elderly women, who have believed themselves long past the period of child-bearing, have repeatedly had as fine healthy strong children as ever were seen. And there has but one old woman, who was sickly before she came to the country, and one infant, died of a natural disease on the island, since it has been settled.