Leasing of grazing lands in the Ponca, Otoe, and Missouria Indian Reservations, Okla. Letter from the Secretary of the Interior, transmitting, in response to resolution of the Senate of December 19, 1899, copies of documents, correspondence, reports, and papers relating to the leasing of grazing lands in the Ponca, Otoe, and Missouria Indian Reservations, in Oklahoma, since the commencement of the year 1897.