taking off their moccasins, the chief lighted a pipe made of some highly polished green stone; after some words in his own tongue he handed the pipe to Captain Lewis, who then handed it to the other white men. Each took a few whiffs, and then passed it back to the warriors. After this ceremony was finished, Lewis explained that they were in great need of food. The chief presented them with cakes made of sun-dried service-berries and choke-cherries. Later another warrior gave them a piece of boiled antelope, and some fresh roasted salmon, the first salmon Lewis had seen, which convinced him that he was now on the waters of the Columbia River. He learned that the Indians had received word of the advance of his party, whom they at first took to be a hostile tribe, and had therefore set out, prepared for an attack. As a further sign of good-will, the white men were invited to witness an Indian dance, which lasted nearly all night. It was late when the white men, tired by their long day's journey, were allowed to take their rest. On the next day Captain Lewis tried to persuade the Shoshones to accompany him across the divide in order to assist in bringing his baggage over. It took considerable argument to get the Indians to do this, and he had to promise them more gifts and arouse their curiosity by telling them that there were a black man and a native Indian woman in his camp, before he could induce them to consent. Finally the chief, Cameahwait, and several of his warriors agreed to go with Lewis. When they reached the place where the rest of the party were camped the chief was surprised and delighted to find that the Indian woman, Sacajawea, was his own sister, whom he had not seen since she had been captured by the enemies of his tribe. Clark's negro servant, York, caused much amazement to the Indians, who had never seen a man of his color before. Lewis then had a long talk with the Shoshones, telling them of the great power of the government he represented, and of the advantages they would receive by trading with the white men. Presently he won their good-will, and they agreed to give him four horses in exchange for firearms and other articles. Sacajawea was of the greatest help in the talk between the white men and the Shoshones, and it was she who finally induced her brother to do all he could to assist the explorers.