David Livingstone,
A Popular Account of Dr Livingstone's Expedition to the Zambesi and its Tributaries…
(1894)
“ The many skeletons we have seen, amongst rocks and woods, by the little pools, and along the paths of the wilderness, attest the awful sacrifice of human life, which must be attributed, directly or indirectly, to this trade of hell. We would ask our countrymen to believe us when we say, as we conscientiously can, that it is our deliberate opinion, from what we know and have seen, that not one-fifth of the victims of the slave-trade ever become slaves. Taking the Shire Valley as an average, we should say not even one-tenth arrive at their destination. ”
