Their country, lying near to Massangano, is low and marshy, but becomes more elevated in the distance, and beyond them lie the lofty dark mountain ranges of the Libollo, another powerful and independent people.

Near Massangano I observed what seemed to be an effort of nature to furnish a variety of domestic fowls, more capable than the common kind of bearing the heat of the sun.

This was a hen and chickens with all their feathers curled upward, thus giving shade to the body without increasing the heat.

They are here named "Kisafu" by the native population, who pay a high price for them when they wish to offer them as a sacrifice, and by the Portuguese they are termed "Arripiada", or shivering.

There seems to be a tendency in nature to afford varieties adapted to the convenience of man.