The summary of the information derived from Ruhinga may be stated as follows:
The country bordering the head of the lake from Urundi proper, on the eastern shore, to Uvira on the western, is divided into the following districts: 1st. Mugere, governed by Mukamba, through which issued into the lake the small rivers of Mugere and Mpanda. 2nd. Mukanigi, governed by Warumashanya, which occupied the whole of the north-eastern head of the lake, through which issued into the lake the small rivers of Karindwa and Mugera wa Kanigi. 3rd. On the eastern half of the district, at the head of the lake, was Usumbura, governed by Simveh, ally and friend of Warumashanya, extending to the eastern bank of the Rusizi. 4th. Commencing from the western bank of the Rusizi, to the extreme north-western head of the lake, was Mugihewa—Ruhinga's country. 5th. From Uvira on the west, running north past Mugihewa, and overlapping it on the north side as far as the hills of Chamati, was Ruwenga, also a country governed by Mukamba. Beyond Ruwenga, from the hills of Chamati to the Ruanda River, was the country of Chamati. West of Ruwenga, comprising all the mountains for two days' journey in that direction, was Uashi. These are the smaller sub-divisions of what is commonly known as Ruwenga and Usige. Ruwenga comprises the countries of Ruwenga and Mugihewa; Usige, the countries of Usumbura, Mukanigi, and Mugere. But all these countries are only part and parcel of Urundi, which comprises all that country bordering the lake from Mshala River, on the eastern shore, to Uvira, on the western, extending over ten days' journey direct north from the head of the lake, and one month in a northeastern direction to Murukuko, the capital of Mwezi, Sultan of all Urundi. Direct north of Urundi is Ruanda; also a very large country.
The Rusizi River—according to Ruhinga—rose near a lake called Kivo, which he said is as long as from Mugihawa to Mugere, and as broad as from Mugihewa to Warumashanya's country, or, say eighteen miles in length by about eight in breadth. The lake is surrounded by mountains on the western and northern sides: on the south-western side of one of these mountains issues the Rusizi—at first a small rapid stream; but as it proceeds towards the lake it receives the rivers Kagunissi, Kaburan, Mohira, Nyamagana, Nyakagunda, Ruviro, Rofubu, Kavimvira, Myove, Ruhuha, Mukindu, Sange, Rubirizi, Kiriba, and, lastly, the Ruanda River, which seems to be the largest of them all. Kivo Lake is so called from the country in which it is situated. On one side is Mutumbi (probably the Utumbi of Speke and Baker), on the west is Ruanda; on the east is Urundi. The name of the chief of Kivo is Kwansibura.
After so many minute details about the River Rusizi, it only remained for us to see it. On the second morning of our arrival at Mugihewa we mustered ten strong paddlers, and set out to explore the head of the lake and the mouth of the Rusizi. We found that the northern head of the lake was indented with seven broad bays, each from one and a half to three miles broad; that long broad spits of sand, overgrown with matete, separated each bay from the other. The first, starting from west to east, at the broadest part, to the extreme southern point of Mugihewa, was about three miles broad, and served as a line of demarcation between Mukamba's district of Ruwenga and Mugihewa of Ruhinga; it was also two miles deep. The second bay was a mile from the southern extremity of Mugihewa to Ruhinga's village at the head of the bay, and it was a mile across to another spit of sand which was terminated by a small island. The third bay stretched for nearly a mile to a long spit, at the end of which was another island, one and a quarter mile in length, and was the western side of the fourth bay, at the head of which was the delta of the Rusizi. This fourth bay, at its base, was about three miles in depth, and penetrated half a mile further inland than any other. Soundings indicated six feet deep, and the same depth was kept to within a few hundred yards of the principal mouth of the Rusizi. The current was very sluggish; not more than a mile an hour. Though we constantly kept our binocular searching for the river, we could not see the main channel until within 200 yards of it, and then only by watching by what outlet the fishing; canoes came out. The bay at this point had narrowed from two miles to about 200 yards in breadth. Inviting a canoe to show us the way, a small flotilla of canoes preceded us, from the sheer curiosity of their owners. We followed, and in a few minutes were ascending the stream, which was very rapid, though but about ten yards wide, and very shallow; not more than two feet deep. We ascended about half a mile, the current being very strong, from six to eight miles an hour, and quite far enough to observe the nature of the stream at its embouchure. We could see that it widened and spread out in a myriad of channels, rushing by isolated clumps of sedge and matete grass; and that it had the appearance of a swamp. We had ascended the central, or main channel. The western channel was about eight yards broad. We observed, after we had returned to the bay, that the easternmost channel was about six yards broad, and about ten feet deep, but very sluggish. We had thus examined each of its three mouths, and settled all doubts as to the Rusizi being an effluent or influent. It was not necessary to ascend higher, there being nothing about the river itself to repay exploration of it.
The question, "Was the Rusizi an effluent or an influent?" was answered for ever. There was now no doubt any more on that point. In size it was not to be compared with the Malagarazi River, neither is it, or can it be, navigable for anything but the smallest canoes. The only thing remarkable about it is that it abounds in crocodiles, but not one hippopotamus was seen; which may be taken as another evidence of its shallowness. The bays to the east of the Rusizi are of the same conformation as those on the west. Carefully judging from the width of the several bays from point to point, and of the several spits which separate them, the breadth of the lake may be said to be about twelve or fourteen miles. Had we contented ourselves with simply looking at the conformation, and the meeting of the eastern and western ranges, we should have said that the lake ended in a point, as Captain Speke has sketched it on his map. But its exploration dissolved that idea. Chamati Hill is the extreme northern termination of the western range, and seems, upon a superficial examination, to abut against the Ramata mountains of the eastern range, which are opposite Chamati; but a valley about a mile in breadth separates the two ranges, and through this valley the Rusizi flows towards the lake.* Though Chamati terminates the western range, the eastern range continues for miles beyond, north-westerly. After its issue from this broad gorge, the Rusizi runs seemingly in a broad and mighty stream, through a wide alluvial plain, its own formation, in a hundred channels, until, approaching the lake, it flows into it by three channels only, as above described. ______________ * After the patient investigation of the North end of the Lake, and satisfying ourselves by personal observation that the Rusizi ran into the Lake, the native rumor which Sir Samuel Baker brought home that the Tanganika and the Albert N'Yanza have a water connection still finds many believers! ______________
I should not omit to state here, that though the Doctor and I have had to contend against the strong current of the Rusizi River, as it flowed swift and strong INTO the Tanganika, the Doctor still adheres to the conviction that, whatever part the Rusizi plays, there must be an outlet to the Tanganika somewhere, from the fact that all fresh-water lakes have outlets, The Doctor is able to state his opinions and reasons far better than I can find for him; and, lest I misconstrue the subject, I shall leave it until he has an opportunity to explain them himself; which his great knowledge of Africa will enable him to do with advantage.
One thing is evident to me, and I believe to the Doctor, that Sir Samuel Baker will have to curtail the Albert N'Yanza by one, if not two degrees of latitude. That well-known traveller has drawn his lake far into the territory of the Warundi, while Ruanda has been placed on the eastern side; whereas a large portion of it, if not all, should be placed north of what he has designated on his map as Usige. The information of such an intelligent man as Ruhinga is not to be despised; for, if Lake Albert came within a hundred miles of the Tanganika, he would surely have heard of its existence, even if he had not seen it himself. Originally he came from Mutumbi, and he has travelled from that country into Mugihewa, the district he now governs. He has seen Mwezi, the great King of Urundi, and describes him as a man about forty years old, and as a very good man.
Our work was now done; there was nothing more to detain us at Mugihewa. Ruhinga had been exceedingly kind, and given us one ox after another to butcher and eat. Mukamba had done the same. Their women had supplied us with an abundance of milk and butter, and we had now bounteous supplies of both.
The Doctor had taken a series of observations for latitude and longitude; and Mugihewa was made out to be in 3 degrees 19 minutes S. latitude.
On the 7th December, early in the morning, we left Mugihewa, and rowing past the southern extremity of the Katangara Islands, we approached the highlands of Uashi near the boundary line between Mukamba's country and Uvira. The boundary line is supposed to be a wide ravine, in the depths of which is a grove of tall, beautiful, and straight-stemmed trees, out of which the natives make their canoes.