Message from the President of the United States, communicating four memorials of residents at and near the eastern slope of the Rocky Mountains, praying the extinguishment of the Indian title, a survey and sale of the public lands, the establishment of an assay office, and the erection of a new territory from contiguous portions of New Mexico, Utah, Kansas, and Nebraska, with his recommendation in relation thereto. February 20, 1860. -- Read, referred to the Committee on Territories, and ordered to be printed