Gunpowder was for a long time a mystery to the Indians. At first they thought that it grew from the ground, like the tobacco plant. It is said they once sowed some of it in the spring, expecting to see it take root and grow. They supposed every white person knew how to make it; and so, once upon a time, when they had captured two young girls, they tried to force them to make a supply of it. [Illustration: INDIAN STONE HATCHET.] =71. How the Indians fought.=--In battle, Indians did not come out in fair and open fight, as is the custom of white men; but their skill consisted in surprises, shooting from behind rocks and trees, skulking around at night, and killing the enemy asleep. Captives in war were frequently tortured in the most barbarous ways; sometimes they were tied to trees and were slowly burned to death or were shot. But it was a high standard of Indian valor to bear the sharpest pain without flinching, with never a groan or any sign of suffering. [Illustration: INDIAN CALUMET OR PIPE OF PEACE.] The Indians, believing as they did that all animals were protecting or unfriendly spirits, often addressed them as if they were human beings. The story is told of an Indian who shot at a large bear and wounded him. The bear fell and lay whining and groaning. The Indian went up to him and said: "Bear, you are a coward, and no warrior. You know that your tribe and mine are at war, and that yours began it. If you had wounded me, I would not have uttered a sound; and yet you sit here and cry and disgrace your tribe." =72. The Use made of Wampum, or Indian Money.=--Indians had little use for gold or silver, but they had something in its place, which they called "wampum." This was made of bits of seashells like beads. The pieces had a hole in the center, so that they could be strung in long strips or made into belts. Wampum was used for a long time as regular money or the medium of exchange between the Indians and the whites, and even between one white and another. Strings of it were passed around for purposes of trade, as we now use coins of silver and gold. But after a while, as seashells became plentiful, wampum became almost worthless, and then the Indians were glad enough to take the white man's silver money. [Illustration: TREATY-BELT MADE OF WAMPUM.] Among some of the tribes, bands of wampum were woven into ornamental belts, and these were decorated with colored beads combined into striking figures and designs. The wampum belts were often given as a pledge that the giver would faithfully live up to certain terms of a treaty.