Jan. 8th.--Waited all night for the "Clumsy." She appeared at 8 A.M., when the reis and several men received the whip for laziness. All three vessels now rounded a sharp turn in the river, and the wind being then favorable, we were soon under sail. The clear water of the river from the Bahr el Gazal to this point, does not exceed a hundred and twenty yards in width. The stream runs at one and three-quarter miles per hour, bringing with it a quantity of floating vegetation. The fact of a strong current both above and below the Bahr el Gazal junction, while the lake at that point is dead water, proves that I was right in my surmise, that no water flows from the Bahr el Gazal into the Nile during this season, and that the lake and the extensive marshes at that locality are caused as much by the surplus water of the White Nile flowing into a depression, as they are by the Bahr el Gazal, the water of the latter river being absorbed by the immense marshes. Yesterday we anchored at a dry spot, on which grew many mimosas of the red bark variety; the ground was a dead flat, and the river was up to the roots of the trees near the margin; thus the river is quite full at this season, but not flooded. There was no watermark upon the stems of the trees; thus I have little doubt that the actual rise of the water-level during the rainy season is very trifling, as the water extends over a prodigious extent of surface, the river having no banks. The entire country is merely a vast marsh, with a river flowing through the midst. At this season last year I was on the Settite. That great river and the Atbara were then excessively low. The Blue Nile was also low at the same time. On the contrary, the White Nile and the Sobat, although not at their highest, are bank-full, while the former two are failing; this proves that the White Nile and the Sobat rise far south, among mountains subject to a rainfall at different seasons, extending over a greater portion of the year than the rainy season of Abyssinia and the neighbouring Galla country. It is not surprising that the ancients gave up the exploration of the Nile when they came to the countless windings and difficulties of the marshes; the river is like an entangled skein of thread. Wind light; course S. 20 degrees W. The strong north wind that took us from Khartoum has long since become a mere breath. It never blows in this latitude regularly from the north. The wind commences at between 8 and 9 A.M., and sinks at sunset; thus the voyage through these frightful marshes and windings is tedious and melancholy beyond description. Great numbers of hippopotami this evening, greeting the boats with their loud snorting bellow, which vibrates through the vessels.