We ferried Mosantu over to the left bank of the Leeba. The journey required five days, but it could not have been at a quicker rate than ten or twelve miles per day; the children were between seven and eight years of age, and unable to walk fast in a hot sun.
Leaving Mosantu to pursue his course, we shall take but one glance down the river, which we are now about to leave, for it comes at this point from the eastward, and our course is to be directed to the northwest, as we mean to go to Loanda in Angola. From the confluence, where we now are, down to Mosioatunya, there are many long reaches, where a vessel equal to the Thames steamers plying between the bridges could run as freely as they do on the Thames. It is often, even here, as broad as that river at London Bridge, but, without accurate measurement of the depth, one could not say which contained most water. There are, however, many and serious obstacles to a continued navigation for hundreds of miles at a stretch. About ten miles below the confluence of the Loeti, for instance, there are many large sand-banks in the stream; then you have a hundred miles to the River Simah, where a Thames steamer could ply at all times of the year; but, again, the space between Simah and Katima-molelo has five or six rapids with cataracts, one of which, Gonye, could not be passed at any time without portage. Between these rapids there are reaches of still, deep water, of several miles in length. Beyond Katima-molelo to the confluence of the Chobe you have nearly a hundred miles again, of a river capable of being navigated in the same way as in the Barotse valley.