Departure of ss. “Goodwill” from Upoto.

But the largest of all the southern affluents is the Kassai, which ranks in importance next to the Congo itself. The exact course of the Kassai was until recently a matter of considerable speculation. This has now been definitely determined, and the Sankuru, formerly thought by some geographers to be the main course of that river, is now known to be its largest affluent. The Kassai rises nearly one thousand miles south of where it joins the Congo, near the Portuguese possessions in the south-western corner of the Congo State. Its course is north, north-east, and north-west. Navigable from Wissmann Falls, which is situated about midway its length, it forms its junction with the Congo not far above Stanley Pool. Joining the Kassai, near Bokala, is the river Kwango, which, rising in the Portuguese possessions, flows directly northward for several hundred miles. The Sankuru, like so many other of the Congo rivers, rises in the Sambas Plateau. Its course is first due north, then west, and, at its junction with the Kassai, is an imposing stream, almost as deep and broad as the Kassai itself. The Lubefu, a northern tributary of the Sankuru, reaches almost to the valley of the Lomami.

It is intended soon to build a railroad connecting these rivers, and when this is accomplished a large area not now accessible will be open to commerce. Necessarily such trading stations will, for a while at least, need governmental protection. Hence each station will be in the nature of a military establishment, and will form also the nucleus for a future city. The Caucasian, observing, of course, certain necessary precautions, will find the climate of a large part of this section quite congenial. It is not unlike that of the tablelands of Java or of the highlands of Ceylon. Moreover, the soil no less than the forests and the mineral resources of this vicinity will offer splendid opportunities to the investor.

The Coming Country.

Necessarily the future of this part of the Congo, as well as that of all regions distant from the navigable rivers, is dependent upon the construction of a railway system which will bring them into touch with the rest of the world. That such railways cannot be built without a great expenditure of money is obvious, but the success of the lines already established and the enormous profits sure in the end to repay the investors are calculated to attract sooner or later the necessary capital. All who have visited this part of the Congo country are agreed that its natural resources are incomparably greater than those of any part of Europe. When developed they will excite the wonder of the world. But this result, so devoutly to be wished, involving as it does the betterment of millions of lives lately enveloped in densest ignorance, is not to be attained without some sacrifices. Capital, time, and labour must co-operate to bring about this result.

The Congo’s Affluents.

On the right or northern bank of the Congo are to be found several large affluents. Of these, one of the most important is the Aruwimi, which joins the Congo just below Nyangwe. The Aruwimi rises in the Blue Mountains, not far from Lake Albert Nyanza. Thence flowing westward about seven hundred miles, and gathering on its way the waters of its numerous tributaries, it is, when it reaches the Congo, a copious stream over a mile wide. Above Yambuya the navigation of the Aruwimi is rendered impossible by a succession of cataracts, that bane of the African navigator. However, the beauty and the resources of the surrounding country somewhat compensate for these hindering conditions. Here is the famous forest of Ituri, the home of a vast population and the haunt of many species of game. In and around the Ituri occurred some noted skirmishes with the mutinous Batetelas.

About 150 miles west of the Aruwimi the Rubi reaches the Congo at Itembo. Rising in the Mabode about 500 miles north of Stanley Falls, it flows west and south-west for a distance of 600 miles.

Three hundred miles west of the Rubi is the Mongalla. It rises at the northern boundary of the State and, flowing south-south-west, reaches the Congo at Molieka. The Mongalla is a fine, open stream, and on its banks the Government has established a line of important stations. By these the State maintains control of the surrounding territory and renders possible commerce with a large population. Similar stations have been and are being erected along the smaller navigable streams, and these, when connected with the centres by railroad and by telegraph, as eventually they will be, will make the whole interior equally accessible.