Where that source may have been is probably indicated by another pair of bellows, which we observed below the Victoria Falls, being found in Central India and among the Gipsies of Europe.
Men in remote times may have had more highly-developed instincts, which enabled them to avoid or use poisons; but the late Archbishop Whately has proved, that wholly untaught savages never could invent anything, or even subsist at all.

Abundant corroboration of his arguments is met with in this country, where the natives require but little in the way of clothing, and have remarkably hardy stomachs.

Although possessing a knowledge of all the edible roots and fruits in the country, having hoes to dig with, and spears, bows, and arrows to kill the game,--we have seen that, notwithstanding all these appliances and means to boot, they have perished of absolute starvation.
The art of making fire is the same in India as in Africa.

The smelting furnaces, for reducing iron and copper from the ores, are also similar.
Yellow haematite, which bears not the smallest resemblance either in colour or weight to the metal, is employed near Kolobeng for the production of iron.

Malachite, the precious green stone used in civilized life for vases, would never be suspected by the uninstructed to be a rich ore of copper, and yet it is extensively smelted for rings and other ornaments in the heart of Africa.