A report to the secretary of war of the United States on Indian affairs : comprising a narrative of a tour performed in the summer of 1820, under a commission from the President of the United States, for the purpose of ascertaining, for the use of the government, the actual state of the Indian tribes in our country; illustrated by a map of the United States; ornamented by a correct portrait of a Pawnee Indian / by the Rev. Jedidiah Morse.