eir cannibalism, but the practice is now hidden on
account of the disgust that the traders expressed against open
man-eating when they first arrived.

Lightning was very near us last night. The Manyuema say that when it is
so loud fishes of large size fall with it, an opinion shared by the
Arabs, but the large fish is really the _Clarias Capensis_ of Smith, and
it is often seen migrating in single file along the wet grass for miles:
it is probably this that the Manyuema think falls from the lightning.

The strangest disease I have seen in this country seems really to be
broken-heartedness, and it attacks free men who have been captured and
made slaves. My attention was drawn to it when the elder brother of Syde
bin Habib was killed in Rua by a night attack, from a spear being
pitched through his tent into his side. Syde then vowed vengeance for
the blood of his brother, and assaulted all he could find, killing the
elders, and making the young men captives. He had secured a very large
number, and they endured the chains until they saw the broad River
Lualaba roll between them and their free homes; they then lost heart.
Twenty-one were unchained as being now safe; however, all ran away at
once, but eight, with many others still in chains, died in three days
after crossing. They ascribed their only pain to the heart, and placed
the hand correctly on the spot, though many think that the organ stands
high up under the breast bone. Some slavers expressed surprise to me
that they should die, seeing they had plenty to eat and no work. One
fine boy of about twelve years was carried, and when about to expire,
was kindly laid down on the side of the path, and a hole dug to deposit
the body in. He, too, said he had nothing the matter with him, except
pain in his heart: as it attacks only the free (who are captured and
never slaves), it seems to be really broken-hearts of which they die.

[Livingstone's servants give some additional particulars in answer to
questions put to them about this dreadful history. The sufferings
endured by these unfortunate captives, whilst they were hawked about in
different directions, must have been shocking indeed; many died because
it was impossible for them to carry a burden on the head whilst marching
in the heavy yoke or "taming stick," which weighs from 30 lbs. to 40
lbs. as a rule, and the Arabs knew that if once the stick were taken
off, the captive would escape on the first opportunity. Childr