“ Rep. 630. An Indian reservation is Indian country (Clairmont v. United States, 225 U.S. 551, 56 L. ed. 1201, 32 Sup. Ct. Rep. 787) , and we take judicial notice that on the date named there was an Indian reservation in the state of Montana known as the Flathead Indian Reservation. ”

“ An act of Congress makes the introduction of liquors, such as whisky, wine, and beer, into the Indian country, an offense against the United States, and prescribes its punishment. 29 Stat. at L. 506, chap. ”