many a poor tribe
otherwise unknown; that he should witness sights, surpassing all he had
ever seen before of the inhumanity and horrors of the
slave-traffic--sights that harrowed his inmost soul; and that when his
final appeal to his countrymen on behalf of its victims came, not from,
his living voice but from his tomb, it should gather from a thousand
touching associations a thrilling power that would rouse the world, and
finally root out the accursed thing.

A very valuable testimony was borne by Sir Bartle Frere to the real aims
of Livingstone, and the value of his work, especially in this last
journey, in a speech delivered in the Glasgow Chamber of Commerce, 10th
November, 1876:

"The object," he said, "of Dr. Livingstone's geographical and
scientific explorations was to lead his countrymen to the
great work of Christianizing and civilizing the millions of
Central Africa. You will recollect how, when first he came
back from his wonderful journey, though we were all greatly
startled by his achievements and by what he told us, people
really did not lay what he said much to heart. They were
stimulated to take up the cause of African discovery again,
and other travelers went out and did excellent service; but
the great fact which was from the very first upon
Livingstone's mind, and which he used to impress upon you,
did not make the impression he wished, and although a good
many people took more and more interest in the Civilization
of Africa and in the abolition of the slave-trade, which he
pointed out was the great obstacle to all progress, still it
did not come home to the people generally. It was not until
his third and last journey, when he was no more to return
among us, that the descriptions which he gave of the horrors
of the slave-trade in the interior really took hold upon the
mind of the people of this country, and made them determine
that what used to be considered the crotchet of a few
religious minds and humanitarian sort of persons, should be a
phase of the great work which this country had undertaken, to
free the African races, and to abolish, in the first place,
the slave-trade by sea, and then, as we hope, the slaving by
land."

In September an Arab slaver was met at Marenga's, who told Musa, one of
the Johanna men, that all the country in front was full of Mazitu, a