Let us state what we do know of one portion of Africa, and then every reader who believes our tale can apply the ratio of the known misery to find out the unknown.

We were informed by Colonel Rigby, late H.M.Political Agent, and Consul at Zanzibar, that 19,000 slaves from this Nyassa country alone pass annually through the Custom-house of that island.

This is exclusive of course of those sent to Portuguese slave-ports.

Let it not be supposed for an instant that this number, 19,000, represents all the victims.

Those taken out of the country are but a very small section of the sufferers.
We never realized the atrocious nature of the traffic, until we saw it at the fountain-head.