of the stream (never exceeding three miles, and decreasing downwards), was adopted and laid down on a large scale. This was next reduced into the five sheets that accompany the present paper, which, when joined together us they are marked, show the general course of the river, with such remarks from the journals relating to its banks as occurred during its construction. The materials, thus brought together, underwent a further reduction, on being copied in the general map, between the points before-mentioned; and it is with some satisfaction, even after the necessarily rough manner in which the whole has been put together, that the following particulars may be pointed out as throwing a degree of probability on the course now laid down being nearly that of the Quorra, which was scarcely to have been expected. The month of the river Nun in the map is nearly due south of Boosà, and the course of the river to the east is about the same as that to the west, which corresponds with that condition. The river Coodoonia fails into the Quorra nearly in the same place as before laid down. The great Tshadda was also found to enter the Quorra at about the point before reported. And with respect to Yáoori it may be added, that Soccatoo was said to be five days' journey from it; while the distance from the former as laid down by Lander, to the latter as given by Clapperton, is about 100 miles, which near!y corresponds with a journey of five days.
