uneventful journey of five months up the Missouri to the country of the Mandan Indians, in what is now Dakota. There they determined to winter. The winter was devoted to making the acquaintance of Indians and to collecting botanical and zoölogical specimens, of which they sent President Jefferson a large amount by a portion of the party which now left them and descended the River. And, while speaking of their relations to Indians, it is very interesting to note the attitude Jefferson instructed them to take in respect to the native tribes. He insisted upon a policy of peace and good-will toward all the tribes upon the route. It is observable that Jefferson refers in a most considerate and friendly manner to the Indians, and instructs the explorers to arrange, if possible, to have some of the more important chiefs induced to come back with the explorers to the city of Washington. He also points out the desirability of urging any bright young Indians to receive such arts as might be useful to them when in contact with the white men. Jefferson even goes so far as to advise the explorers to take along vaccine matter that the Indians might be instructed in the advantages of vaccination. A number of medallion medals were made that were intended to be given as presents to Indian chiefs, the inscription of which was "Peace and Friendship," with the design of clasped hands. These medals, it may be remarked, seem to have been prized by the Indians as among their greatest treasures. Several of them have been found in Indian graves; one even in a grave of the Nez Percé Indians in Idaho.
While among the Mandans, the expedition was joined by the most attractive personage in it, that is
