US Presidency
1806

Lewis and Clarke, and Freeman, will require further time to be digested and prepared. These important surveys, in addition to those before possessed, furnish materials for commencing an accurate map of the Mississippi, and its western waters. Some principal rivers, however, remain still to be explored, toward which the authorization of Congress, by moderate appropriations, will be requisite. I congratulate you, fellow citizens, on the approach of the period at which you may interpose your authority constitutionally, to withdraw the citizens of the United States from all further participation in those violations of human rights which have been so long continued on the unoffending inhabitants of Africa, and which the morality, the reputation, and the best interests of our country, have long been eager to proscribe. Although no law you may pass can take prohibitory effect till the first day of the year one thousand eight hundred and eight, yet the intervening period is not too long to prevent, by timely notice, expeditions which can not be completed before that day.