The treaty, moreover, called for the opening of two additional treaty ports, one of which is at Feng-tien-fu, more generally known as Mukden, important not only as a city of 200,000 inhabitants but as the capital of Manchuria and with both rail and river connection with the Gulf of Pe-chi-li and the imperial province of Chih-li. The other is at An-tung, which is important because of its situation on the Yalu River opposite the Korean frontier. Of course, the Russia-Japan War has post- poned the opening of these ports, but the recognition of China's right to open them by treaty with the United States is none the less significant. Most important of all, the treaty removes, so far as any such enactment can remove, the last barrier to the extension of Christianity throughout China. In Article XIII of the English treaty with China, September 5, 1902, Great Britain agreed to join in a commission to secure peaceable relationships between converts and non-converts in China. But the American treaty goes much farther, as the following extract (Article XIV) will show:-- ``The principles of the Christian religion, as professed by the Protestant and Roman Catholic Churches, are recognized as teaching men to do good and to do to others as they would have others do to them. Those who quietly profess and teach these doctrines shall not be harassed or persecuted on account of their faith. Any person, whether citizen of the United States or Chinese convert, who, according to these tenets, peaceably teaches and practices the principles of Christianity shall in no case be interfered with or molested therefor. No restrictions shall be placed on Chinese joining Christian churches. Converts and non-converts, being Chinese subjects, shall alike conform to the laws of China, and shall pay due respect to those in authority, living together in peace and amity; and the fact of being converts shall not protect them from the consequences of any offense they may have committed before or may commit after their admission into the church, or exempt them from paying legal taxes levied on Chinese subjects generally, except taxes levied and contributions for the support of religious customs and practices contrary to their religion. Missionaries shall not interfere with the exercise by the native authorities of their jurisdiction over Chinese subjects; nor shall the native authorities make any distinction between converts and non-converts, but shall administer the laws without partiality, so that both classes can live together in peace. ``Missionary societies of the United States shall be permitted to rent and to lease in perpetuity as the property of such societies, buildings or lands in all parts of the Empire for missionary purposes and, after the title-deeds have been found in order and duly stamped by the local authorities, to erect such suitable buildings as may be required for carrying on their good work.''