342 THE POPULAR SCIENCE MONTHLY. 



But, further, if unconnected with the eastern branch of the White 

 Nile, of which the Albert Nyanza and the Victoria Nyanza are the 

 feeders, does the Lualaba join the eastern branch either as the upper 

 waters of Petherick's Bahr-el-Ghazel, or as one of its tributary streams ? 

 Against the first supposition it is urged that the source of this branch 

 was discovered by the German traveller, Schweinfurth, 5 north of the 

 equator. But it is maintained, in favor of the second, that the Uelle, 

 a large feeder of the Bahr-el-Ghazel, was crossed by the same travel- 

 ler, which, though certainly, where he saw it, flowing from east to west, 

 was never traced to its source. He supposed it to rise in lat. 2 N., in 

 the range of mountains west of the Albert Nyanza ; but it is uncer- 

 tain. The course of the Uelle may wind in such a manner as to ac- 

 count for the westward setting where Schweinfurth found it. Wheth- 

 er a greater difficulty exists in the fact that the two rivers lie at the 

 same altitude of 2,000 feet, yet awaits the test of accurate observa- 

 tion. In the mean time, it is thought that the Lualaba may prove 

 to be connected with the Uelle tributary, and thus enter the Nile by 

 its western branch. 



But even then the old mystery will not be solved. The Chambezi 

 is not to monopolize the glory of giving rise to the great Egyptian 

 river. Dr. Livingstone does not think so. On the 700th mile of the 

 water-shed, are the fountains of the two rivers, Kafue and Leeambye, 

 running south into the Zambesi. Near the same spot, the Lufira and 

 Lomami (Lualaba) are said to have their source, flowing, as was seen, 

 to the north. In the stoneless mound, or ant-hill according to some, on 

 which these four fountains are reported to gush out, Livingstone is re- 

 minded of the information supplied to Ptolemy by ancient explorers, 

 and of the description of the Nile sources given to Herodotus at Sais 

 in Egypt. Will he be able, as he believes, to substantiate this record 

 of antiquity, and in establishing his own theory of a dividing ridge-line 

 between north and south where Lake Dilolo (lat. 11 32' 1" S.) may 

 again have to be considered find, after all, that, instead of a discov- 

 ery, his labors may simply result in a rediscovery ? And then as to 

 Tanganyika and the Albert Nyanza. Dr. Livingstone and Stanley to- 

 gether proved that the first lake has no outlet at its northern end, and 

 that the Rusizi a river with eighteen tributaries, coming from the 

 small lake Kivo is an inflowing stream, and not a drain. What will 

 be done in this direction ? What may be the result of discovering 

 some other outlet from a lake extending over 360 miles of latitude, and 

 this, too, when the Albert Nyanza to the south shall be no longer, as 

 at present, unexplored ? 



For the solution of these questions, we must await the return of 

 Dr. Livingstone himself, who is, by this time, we hope, once more 

 among the waters of Rua and Manyema, with ample stores, and well 

 attended. In two years, though probably more, he may be able to 

 give us his own account. But, in prosecuting the researches, whose 



