It would be well worth the attention of a man of leisure to ascertain the lowest part in the country around Lake George, at which its waters, on reaching their maximum height, would overflow from its basin. Several lagoons, apparently the remains of more extensive waters, occur between Lake George and Bredalbane plains in the line of watershed as already observed. These are named Tarrago, Mutmutbilly, and Wallagorong, the latter being apparently a residuum of the lake which probably once covered the three plains of Bredalbane. SOIL AND ROCKS. The quality of the soil now found in the patches of grassy land on the margins of these lakes and lagoons depends on the nature of the high ground nearest to them. The hills to the eastward of Lake George are chiefly granitic. Ondyong point on its northern shore consists of sandstone resembling that of the coal-measures; and the rock forming the range above the western shores is of the same quality. The hills at the source of Kenny's creek consist of trap, of which rock there is also a remarkable hill on the southern side of Bredalbane plains; and these plains are bounded on the north by a ridge of syenite, which here forms the actual division between the sources of the rivers Lachlan and Wollondilly. The water in the smaller lagoons westward of Lake George is perfectly sweet, and the pasturage on the plains adjacent being in general very good, the land is occupied by several extensive grazing establishments. THE WOLLONDILLY. On entering the valley of the river Wollondilly which waters Goulburn plains, I was surprised to see its waters extremely low and not even flowing. The poor appearance of the woods also struck me, judging by comparison with the land in the south; and although the scantiness of grass, also observable, might be attributed to the great number of sheep and cattle fed there, I was not the less sensible of the more parched aspect of the country generally. GOULBURN PLAINS. Goulburn Plains consist of open downs affording excellent pasturage for sheep and extending twenty miles southward from the township, their breadth being about ten. A GARDEN. I reached at twilight the house of a worthy friend, Captain Rossi, who received me with great kindness and hospitality. The substantial improvements which he had effected on his farm since my last visit to that part of the colony evinced his skill and industry as a colonist; while an extensive garden and many tasteful arrangements for domestic comfort marked the residence of a gentleman. Under that hospitable roof I exchanged the narrative of my wanderings for the accumulated news of seven months which, with my friend's good cheer, rendered his invitation to rest my horses for one day quite irresistible. October 31. A walk in the garden; a visit to the shearing shed; the news of colonial affairs in general; fat pullets cooked a la gastronome and some good wine; had each in its turn rare charms for me. PUBLIC WORKS.