Even melons in a garden may be made bitter by a few bitter kengwe in the vicinity.

The bees convey the pollen from one to the other.
The human inhabitants of this tract of country consist of Bushmen and Bakalahari.

The former are probably the aborigines of the southern portion of the continent, the latter the remnants of the first emigration of Bechuanas.

The Bushmen live in the Desert from choice, the Bakalahari from compulsion, and both possess an intense love of liberty.
The Bushmen are exceptions in language, race, habits, and appearance.
They are the only real nomads in the country; they never cultivate the soil, nor rear any domestic animal save wretched dogs.

They are so intimately acquainted with the habits of the game that they follow them in their migrations, and prey upon them from place to place, and thus prove as complete a check upon their inordinate increase as the other carnivora.