“ Whenever ships of war of the United States, in cruising for the protection of the commerce of their country, shall arrive at any of the ports of China, the commanders of said ships and the superior local authorities of Government, shall hold intercourse together in terms of equality and courtesy, in token of the friendly relations of their respective nations. And the said ships of war shall enjoy all suitable facilities on the part of the Chinese Government in the purchase of provisions, procuring water, and making repairs, if occasion require. ”

“ If their dwellings or property be threatened or attacked by mobs, incendiaries, or other violent or lawless persons, the local officers, on requisition of the Consul, will immediately despatch a military force to disperse the rioters, and will apprehend the guilty individuals, and punish them with the utmost rigor of the law. ”