Wednesday, 20th.  The day was delightfully fine; the mercury being at sunrise 2 degrees and in the course of the day 22 degrees above 0, the wind southerly.  Kagohami came down to see us early:  his village is afflicted by the death of one of their eldest men, who from his account to us must have seen one hundred and twenty winters.  Just as he was dying, he requested his grandchildren to dress him in his best robe when he was dead, and then carry him on a hill and seat him on a stone, with his face down the river towards their old villages, that he might go straight to his brother who had passed before him to the ancient village under ground.  We have seen a number of Mandans who have lived to a great age; chiefly however the men, whose robust exercises fortify the body, while the laborious occupations of the women shorten their existence.

Thursday 21.  We had a continuation of the same pleasant weather.  Oheenaw and Shahaka came down to see us, and mentioned that several of their countrymen had gone to consult their medicine stone as to the prospects of the following year.  This medicine stone is the great oracle of the Mandans, and whatever it announces is believed with implicit confidence.  Every spring, and on some occasions during the summer, a deputation visits the sacred spot, where there is a thick porous stone twenty-feet in circumference, with a smooth surface.  Having reached the place the ceremony of smoking to it is performed by the deputies, who alternately take a whiff themselves and then present the pipe to the stone; after this they retire to an adjoining wood for the night, during which it may be safely presumed that all the embassy do not sleep; and in the morning they read the destinies of the nation in the white marks on the stone, which those who made them are at no loss to decypher.  The Minnetarees have a stone of a similar kind, which has the same qualities and the same influence over the nation.  Captain Lewis returned from his excursion in pursuit of the Indians.  On reaching the place where the Sioux had stolen our horses, they found only one sled, and several pair of moccasins which were recognised to be those of the Sioux.  The party then followed the Indian tracks till they reached two old lodges where they slept, and the next morning pursued the course of the river till they reached some Indian camps, where captain Clarke passed the night some time ago, and which the Sioux had now set on fire, leaving a little corn near the place in order to induce a belief that they were Ricaras.  From this point the Sioux tracks left the river abruptly and crossed into the plains; but perceiving that there was no chance of overtaking them, captain Lewis went down to the pen where captain Clarke had left some meat, which he found untouched by the Indians, and then hunted in the low grounds on the river, till he returned with about three thousand pounds of meat, some drawn in a sled by fifteen of the men, and the rest on horseback; having killed thirty-six deer, fourteen elk, and one wolf.