The treaty of Washington in 1868 gave great satisfaction to the Chinese Government as it contained pacific and, appreciative references to China, an express disclaimer of any designs upon the Empire and a willingness to admit Chinese to the United States. The treaty of 1880, however, considerably modified this willingness and the treaty of 1894 rather sharply restricted further immigration. But in the commercial treaty of 1880, the United States, at the request of the Chinese Government, agreed to a clause peremptorily forbidding any citizen of the United States from engaging in the opium traffic with the Chinese or in any Chinese port. Our national policy was admirably expressed in the note sent by the Hon. Frederick F. Low, United States Minister at Peking, to the Tsung-li Yamen, March 20, 1871:-- ``To assure peace in the future, the people must be better informed of the purposes of foreigners. They must be taught that merchants are engaged in trade which cannot but be beneficial to both native and foreigner, and that missionaries seek only the welfare of the people, and are engaged in no political plots or intrigues against the Government. Whenever cases occur in which the missionaries overstep the bounds of decorum, or interfere in matters with which they have no proper concern, let each case be reported promptly to the Minister of the country to which it belongs. Such isolated instances should not produce prejudice or engender hatred against those who observe their obligations, nor should sweeping complaints be made against all on this account. Those from the United States sincerely desire the reformation of those whom they teach, and to do this they urge the examination of the Holy Scriptures, wherein the great doctrines of the present and a future state, and also the resurrection of the soul, are set forth, with the obligation of repentance, belief in the Saviour, and the duties of man to himself and others. It is owing, in a great degree, to the prevalence of a belief in the truth of the Scnptures that Western nations have attained their power and prosperity. To enlighten the people is a duty which the officials owe to the people, to foreigners, and themselves; for if, in consequence of ignorance, the people grow discontented, and insurrection and riots occur, and the lives and property of foreigners are destroyed or imperilled, the Government cannot escape its responsibility for these unlawful acts.'' Referring to this note, the Hon. J. C. B. Davis, acting Secretary of State, wrote to Mr. Low, October 19, 1871:--