The tributaries of the Sabi River flowing near Zimbabwe have been ill-defined on previous maps. The ’Mpopotekwe joins the ’Mtelekwe and the ’Mshagashe flows into the united stream a short distance south of Zimbabwe. This river, under the name of the ’Mtelekwe, then flows into the Lunde, and not to the Sabi direct. The Tokwe joins the Lunde farther north. The most interesting geographical work that we did was on our expedition to the Sabi River, and on that from Fort Salisbury to ’Mtoko’s, and down by Mangwendi’s and Makoni’s country to Umtali. On our journey to the Sabi we crossed a great many of its western tributaries; and as the same streams rose near the waggon-road, and we crossed them pretty far down their courses, we were able to lay down their direction for a considerable distance with certainty. The Sabi River itself, in latitude 19° 15′, we found was placed twenty miles too far west in former maps; and from the information which I gathered from the natives, in the latitude of Zimbabwe, it must be about fifty miles farther east than it is placed in these maps. This river, where we struck it, was a considerable stream flowing rapidly over a rocky bed. It had fallen about 1,800 feet from its source near Fort Charter, and had 2,700 feet more to fall before it reached the sea. When it has received all the tributaries we crossed it must be a very big river. Going from Fort Salisbury to ’Mtoko’s we crossed many tributaries of the Mazoe River, which were either not shown at all in former maps, or were most inaccurately placed. We recrossed these streams again farther up returning from ’Mtoko’s to Mangwendi’s. I also got excellent views of them from the various mountains which I ascended, so that I was able to lay them down in my map with certainty. To the eastward of ’Mtoko’s we could see the high veldt breaking into mountain ranges as it descended towards Gouveia’s country.