Special Message

To the Senate of the United States:

I transmit herewith, for the constitutional action of the Senate, articles of agreement and convention concluded at Niobrara, Nebraska Territory, on the 14th day of November, 1860, between J. Shaw Gregory, agent on the part of the United States, and the chiefs and headmen of the Poncas tribe of Indians, being supplementary to the treaty with said tribe made on the 12th day of March, 1858.

I also transmit a letter, dated the 4th instant, from the Secretary of the Interior, inclosing a copy of a report of the Commissioner of Indian Affairs of the 20th September, 1861, in relation to the subject.

ABRAHAM LINCOLN.