Some time during the autumn of 1832, a young blood Indian (of the race of the Black-feet,) arrived at the fort all alone. He had no furs, or other articles of traffic with him, and was not equipped in the usual style for war. His pale haggard appearance, and deep settled melancholy, attracted the observation of all who saw him; but as a residence of several years among the Indians, had taught us something of their rules of politeness, I forbore to question him as to the cause of his grief, more especially as he did not seem to be in a very communicative mood. I ordered him something to eat, but he pushed the proffered repast aside, and refused to partake. Our interpreter then handed him a pipe, which he received in a cold mechanical manner, appearing scarcely conscious of what he did; and instead of sending up dense columns of smoke in rapid succession, as is usually the case, he sat with the pipe extended across his knees, absorbed in a deep reverie, and now and then heaving profound sighs, which appeared to arise from the inmost recesses of his soul. The pipe having gone out, the interpreter relighted it, and again placed it in the young Indian's hand. He started up, and after a few hasty whiffs, seized his bow and arrows, and walked hastily out of the fort. Our curiosity having been excited by his mysterious conduct, several of us followed in order to watch his motions. He went to the river bank, and having thrown off his robe, which he fastened to the back of his head, in order to keep it dry, he deliberately plunged into the river and swam for the opposite shore. I called to him through the interpreter, promising if he would return, to send him over in my skiff, reminding him at the same time that the current was wide, and the water extremely cold--but he only turned his head around, and with a bitter smile, exclaimed, "the fire which is burning in my heart, will keep me warm!" He spoke no other word, but dashing through the waves, which a keen October wind had lashed into motion, we saw him presently ascend the rocky cliffs of the other side, and striking into the path which led to the mountains, he disappeared, with the speed and agility of an antelope. Several conjectures were made among us, respecting the singular conduct of this seemingly unhappy youth; but as none could furnish an explanation entirely satisfactory, the affair in a few days, ceased to be the subject of inquiry or conversation.