arm lying to S.S.W. shews itself now as a gohr, discharging itself with unusual rapidity into the Nile, instead of forming our track, for our course runs with the former great arm to N.W. _4th February,_—Yesterday was the last day of the great Bairam. Selim Capitan and Suliman Kashef had called up all the skill of Turkish cookery to give us Franks a good dinner, at which we were the jollier because the Frenchmen had lost several bottles of wine in a wager. The river, flowing in S.S.W., and said to be an arm of the Nile, puzzles me exceedingly. According to the natives, it comes from the mountains above, and indeed from the Nile itself. If it come from above, it must make a considerable bend; for it flows from the left side into the river, and follows upwards its direction immediately from S.S.W. to W.: it must cut through, somewhere, the old sanded and choked-up primitive bed of the Nile, to come from E. or S.E. from the mountains to W. It might be possible that the half dried-up gohr, from S.S.E., serves as its main bed at high water, and this being sanded up, it had retreated now into the deeper canal. Selim Capitan found the breadth of this tributary, or gohr, to be eighty metres near the before-mentioned solitary dhellèb-palm on its shore. The rapidity of its current is greater than usual in the White river, and amounts to three sea-miles and a half. Still it is doubtful whether it be a river discharging itself, or a Nile arm. Clouds, threatening rain, have shewn themselves for some days, and in the evening-whole coveys of swallows are moving towards the N. We have seen no dhellèb-palms on the shores of our Kirboli, although there are some of them on the main stream. The Kirboli, therefore, may have already reached its termination here. I hear, from Selim Capitan and his interpreter, who is well acquainted with this country, that we passed by two tribes yesterday afternoon; and I understand now what the natives wanted to tell me when we yesterday halted for a moment to wait for Selim Capitan. According to what the Bukos themselves said, they were as large a nation as their island. But this is incorrect; for at two o’clock yesterday, this tribe ceased, and was followed by that of the Tshièrrs, who possess both shores from thence, and reach to the neighbourhood of this place, where Bohrs appear on the right shore. The Tshièrrs have their foreheads stippled, like the people dwelling upwards, and use also the same language. Downwards from them the language is again allied to that of the Dinkas. It was, therefore, the little country of the Tshièrrs, where no one was seen on the shore, because they feared that we were set against them by the Bukos. However, the tribes above named, having similar tongues and descent, do not live in open feud, for I met myself with men of the Tshièrrs at the top of the island. A couple of them also were with Selim Capitan, and told him that their countrymen had fled from us.