blows most constantly, we shall easily conceive that the western coasts of this part of the
world must, and actually do, experience a greater degree of heat than those of the eastern coasts; as
the east wind reaches the latter with the freshness which it receives in passing over a vast sea,
whereas before it reaches the former, it acquires a burning heat, in traversing the interior parts of
Africa. Thus, therefore, the coasts of Senegal, Sierra Leona, Guinea, and all the western regions
of Africa, situated under the Torrid Zone, are the hottest climates in the world; nor is it by any
means so hot on the eastern coasts, at Mosambique, Mombaza, &c. I have not the smallest doubt,
therefore, but this is the reason that we find the real negroes, or the blackest men, in the western
territories of Africa, and Caffres, or black men, of a hue more light, in the eastern territories. The
evident difference which subsists between these two species of blacks proceeds from the heat of
their climate, which is not very great in the eastern, but excessive in the western. Beyond the
Tropic, on the south, the heat is considerably diminished, not only from its situation as to climate,
but from the point of Africa being contracted; and as that point is surrounded by
the