Section 881, R.S. 4681, related to authority of the President to order surveys of coasts of the United States. See section 883a of this title. Section 882, R.S. 4682, related to additional authority to order surveys beyond twenty-league limit. See section 883a of this title. Section 883, R.S. 4683, 4684, related to mode of conducting surveys generally. See sections 883a and 883b of this title.