“Convinced that he was a Shoshonee, and knowing how much our success depended on the friendly offices of that nation, Captain Lewis was full of anxiety to approach without alarming him, and endeavor to convince him that he (Lewis) was a white man.  He therefore proceeded toward the Indian at his usual pace.  When they were within a mile of each other the Indian suddenly stopped.  Captain Lewis immediately followed his example, took his blanket from his knapsack, and, holding it with both hands at the two corners, threw it above his head, and unfolded it as he brought it to the ground, as if in the act of spreading it.  This signal, which originates in the practice of spreading a robe or skin as a seat for guests to whom they wish to show a distinguished kindness, is the universal sign of friendship among the Indians on the Missouri and the Rocky Mountains.  As usual, Captain Lewis repeated this signal three times:  still the Indian kept his position, and looked with an air of suspicion on Drewyer and Shields, who were now advancing on each side.  Captain Lewis was afraid to make any signal for them to halt, lest he should increase the distrust of the Indian, who began to be uneasy, and they were too distant to hear his voice.  He therefore took from his pack some beads, a looking-glass, and a few trinkets, which he had brought for the purpose, and, leaving his gun, advanced unarmed towards the Indian.  He remained in the same position till Captain Lewis came within two hundred yards of him, when he turned his horse and began to move off slowly.  Captain Lewis then called out to him in as loud a voice as he could, repeating the words tabba bone, which in the Shoshonee language mean white man.  But, looking over his shoulder, the Indian kept his eyes on Drewyer and Shields, who were still advancing, without recollecting the impropriety of doing so at such a moment, till Captain Lewis made a signal to them to halt:  this Drewyer obeyed, but Shields did not observe it, and still went forward.  Seeing Drewyer halt, the Indian turned his horse about as if to wait for Captain Lewis, who now reached within one hundred and fifty paces, repeating the words tabba bone, and holding up the trinkets in his hand, at the same time stripping up the sleeve of his shirt to show the color of his skin.  The Indian suffered him to advance within one hundred paces, then suddenly turned his horse, and, giving him the whip, leaped across the creek, and disappeared in an instant among the willow bushes:  with him vanished all the hopes which the sight of him had inspired, of a friendly introduction to his countrymen.”