"'Prior to the agreement of 1876, buffalo and deer were the main support of the Sioux. Food, tents and bedding were the direct outcome of hunting. And with furs and pelts as articles of barter or exchange, it was easy for the Sioux to procure whatever constituted for them the necessities, the comforts, or even the luxuries of life. Within eight years from the agreement of 1876 the buffalo had gone, and the Sioux had left to them alkali land and Government rations.'" Commissioner of Indian Affairs "