They deal largely in salt, which their country produces in great abundance.

It is brought in crystals of about 12 inches long and 1-1/2 in diameter.

This is hawked about every where in Angola, and, next to calico, is the most common medium of barter.

The Kisama are brave; and when the Portuguese army followed them into their forests, they reduced the invaders to extremity by tapping all the reservoirs of water, which were no other than the enormous baobabs of the country hollowed into cisterns.

As the Kisama country is ill supplied with water otherwise, the Portuguese were soon obliged to retreat.