I, Mohamed, Sultan of Sooloo, for the purpose of encouraging trade with the people of the United States of America, do promise hereby and bind myself that I will afford full protection to all vessels of the United States, and their commanders and crews visiting any of the islands of my dominions, and they shall be allowed to trade on the terms of the most favoured nation, and receive such provisions and necessaries as they may be in want of. 2dly. In case of shipwreck or accident to any vessel, I will afford them all the assistance in my power, and protect the persons and property of those wrecked, and afford them all the assistance in my power for its preservation and safe-keeping, and for the return of the officers and crews of said vessels to the Spanish settlements, or wherever they may wish to proceed. 3dly. That any one of my subjects who shall do any injury or harm to the commanders or crews belonging to American vessels, shall receive such punishment as his crime merits. In witness whereof I have hereunto set my hand and seal, in presence of the datus and chiefs at Soung, island of Sooloo. February 5th, 1842. [Here follows a signature in Arabic characters.] Witnesses: Charles Wilkes, Commanding Exploring Expedition. William L. Hudson, Late Commanding U. S. Ship Peacock. R. R. Waldron, Purser, U. S. Exploring Expedition. [77] Pangutárang is the largest island of the numerous group of the same name belonging to the Sulu Archipelago, and has an area of 42 square miles. See Census of Philippines, i, p. 284. [78] Cagayan Sulu has an area of 27 square miles. It is located in a group of 31 islands. See Census of Philippines, i, p. 286. [79] According to Census of Philippines (i, p. 28, ii, p. 123), the area of the Davao district is 9,707 square miles, and the total population 65,496, of whom 45,272 are uncivilized.