The arrangement which the Pope has made with the Emperor of China promises to be productive of the happiest results, and to open the Flowery Kingdom fully to the spread of the gospel. For many years the French assumed the position of protectors of Christian missionaries in barbarous countries. The first expedition to Annam was avowedly sent to put an end to the murders of missionaries and converts so frequent in that country; and for a time it did serve to put a check on the ferocity of government and people. In the treaty of Tienstin it was stipulated that the French Government should have the right to protect missionaries in China. For a time that seemed to work well. But the many complaints made through the French consuls, and the punishments inflicted on Mandarins at their demand, served to irritate the Mandarins and the populace. The indiscretion of some French missionaries, who interposed to protect converts not always deserving of protection, and who flaunted the flag of France in the faces of the Mandarins in their own courts, increased the irritation. Some of the missionaries boasted also in letters, which the Chinese saw when published, of the respect for France which they instilled into their converts. The consequence was, that, although the missionaries are from all nations, the Chinese learned to regard them as French; and when the French made the late war on China, to regard all Chinese Christians as traitors. Formerly the government persecuted the Christians. Latterly Chinese mobs massacred the Christians and destroyed their churches, convents, schools, etc., and the French scarcely made an effort to protect them even in Tonquin. The Holy Father, in the letter which we published some time ago, assured the Emperor that the missionaries who are of all nations are of no politics and desire only to preach the Christian religion, and begged the Emperor to protect them. It has now been arranged that the Pope shall hereafter be represented by a Legate at Pekin to whom the rank, etc., of an ambassador will be given, and who will receive any complaints the missionaries may have to make and will seek redress for them. Thus the interests of religion will, in the minds of the Chinese, be entirely dissociated from the interests of all foreign countries, and the feelings which now prevail will subside in time. The French Government infidel, though it is, will not like, it is thought, to be thus put aside; but if the missionaries cease to appeal to its agents it will be powerless.