He had been exhausted by constant depression and mental anxiety.
From this unfortunate expedition, however, some information was obtained respecting a part of Africa, not visited for several centuries.

No trace indeed was seen of the great kingdoms, or of the cities and armies described by the Portuguese missionaries, so that though the interior may very probably be more populous than the banks of the river, there must in these pious narratives be much exaggeration; indeed it is not unworthy of remark, that all the accounts of the early missionaries, into whatever part of the world they undertook to intrude themselves, can only be looked upon as a tissue of falsehood, and hyperbolical misrepresentation.
The largest towns, or rather villages, did not contain above one hundred houses, with five hundred or six hundred inhabitants.

They were governed by chenoos, with a power nearly absolute, and having mafooks under them, who were chiefly employed in the collection of revenue.

The people were merry, idle, good-humoured, hospitable, and liberal, with rather an innocent and agreeable expression of countenance.

The greatest blemish in their character appeared in the treatment of the female sex, on whom they devolved all the laborious duties of life, even more exclusively than is usual among negro tribes, holding their virtues also in such slender esteem, that the greatest chiefs unblushingly made it an object of traffic.