It appears, then, that the Macquarie, flowing as it does for so many miles, through a bed, and not a declining country, and having little water in it, except in times of flood, loses its impetus long ere it reaches the formidable barrier that opposes its progress northwards; the soil in which the reeds grow being a stiff clay. Its waters consequently spread, until a slight declivity giving them fresh impulse, they form a channel again, but soon gaining a level, they lose their force and their motion together, and spread not only over the second great marsh, but over a vast extent of the surrounding country, the breadth of ground thus subject to inundation being more than twenty miles, and its length considerably greater; around this space there is a gentle rise which confines the waters, while small hollows in various directions lead them out of the marshes over the adjacent plains, on which they eventually subside. On my return from the interior, I examined those parts round which I had not been, with particular attention, partly in company with Mr. Hume, and this statement was confirmed by what we saw. Thus, at a distance of about twenty-five miles from Mount Foster to the N.N.W. the river Macquarie ceases to exist, in any shape as a river, and at a distance of between fifty and sixty, the marshes terminate, though the country subject to inundation from the river is of a very considerable extent, as shown by the withered bulrushes, wet reeds, and shells, that are scattered over its surface.