Our two donkeys caused as much admiration as the three white men. Great was the astonishment when one of the donkeys began to bray. The timid jumped more than if a lion had roared beside them. All were startled, and stared in mute amazement at the harsh-voiced one, till the last broken note was uttered; then, on being assured that nothing in particular was meant, they looked at each other, and burst into a loud laugh at their common surprise. When one donkey stimulated the other to try his vocal powers, the interest felt by the startled visitors, must have equalled that of the Londoners, when they first crowded to see the famous hippopotamus. We were now, when we crossed the boundary rivulet Nyamatarara, out of Chicova and amongst sandstone rocks, similar to those which prevail between Lupata and Kebrabasa. In the latter gorge, as already mentioned, igneous and syenitic masses have been acted on by some great fiery convulsion of nature; the strata are thrown into a huddled heap of confusion. The coal has of course disappeared in Kebrabasa, but is found again in Chicova. Tette grey sandstone is common about Sinjere, and wherever it is seen with fossil wood upon it, coal lies beneath; and here, as at Chicova, some seams crop out on the banks of the Zambesi. Looking southwards, the country is open plain and woodland, with detached hills and mountains in the distance; but the latter are too far off, the natives say, for them to know their names. The principal hills on our right, as we look up stream, are from six to twelve miles away, and occasionally they send down spurs to the river, with brooks flowing through their narrow valleys. The banks of the Zambesi show two well- defined terraces; the first, or lowest, being usually narrow, and of great fertility, while the upper one is a dry grassy plain, a thorny jungle, or a mopane (_Bauhinia_) forest. One of these plains, near the Kafue, is covered with the large stumps and trunks of a petrified forest. We halted a couple of days by the fine stream Sinjere, which comes from the Chiroby-roby hills, about eight miles to the north. Many lumps of coal, brought down by the rapid current, lie in its channel. The natives never seem to have discovered that coal would burn, and, when informed of the fact, shook their heads, smiled incredulously, and said "_Kodi_" (really), evidently regarding it as a mere traveller's tale. They were astounded to see it burning freely on our fire of wood. They told us that plenty of it was seen among the hills; but, being long ago aware that we were now in an immense coalfield, we did not care to examine it further. A dyke of black basaltic rock, called Kakolole, crosses the river near the mouth of the Sinjere; but it has two open gateways in it of from sixty to eighty yards in breadth, and the channel is very deep.