The sun is excessively hot, and feels sharp in Africa; but, probably from the greater dryness of the atmosphere, we never heard of a single case of sunstroke, so common in India.

The Makololo told Dr.Livingstone they "always thought he had a heart, but now they believed he had none," and tried to persuade Dr.
Kirk to return, on the ground that it must be evident that, in attempting to go where no living foot could tread, his leader had given unmistakeable signs of having gone mad.

All their efforts of persuasion, however, were lost upon Dr.Kirk, as he had not yet learned their language, and his leader, knowing his companion to be equally anxious with himself to solve the problem of the navigableness of Kebrabasa, was not at pains to enlighten him.

At one part a bare mountain spur barred the way, and had to be surmounted by a perilous and circuitous route, along which the crags were so hot that it was scarcely possible for the hand to hold on long enough to ensure safety in the passage; and had the foremost of the party lost his hold, he would have hurled all behind him into the river at the foot of the promontory; yet in this wild hot region, as they descended again to the river, they met a fisherman casting his hand-net into the boiling eddies, and he pointed out the cataract of Morumbwa; within an hour they were trying to measure it from an overhanging rock, at a height of about one hundred feet.

When you stand facing the cataract, on the north bank, you see that it is situated in a sudden bend of the river, which is flowing in a short curve; the river above it is jammed between two mountains in a channel with perpendicular sides, and less than fifty yards wide; one or two masses of rock jut out, and then there is a sloping fall of perhaps twenty feet in a distance of thirty yards.