This explanation of the internal life and constitution of the church, and of the intelligible side of the mysteries of faith and the intrinsic reasons for the truths of divine revelation, giving to them their due emphasis, combined with the external notes of credibility, would complete the demonstration of Christianity. Such an exposition of Christianity, the union of the internal with the external notes of credibility, is calculated to produce a more enlightened and intense conviction of its divine truth in the faithful, to stimulate them to a more energetic personal action; and, what is more, it would open the door to many straying, but not altogether lost, children, for their return to the fold of the church. The increased action of the Holy Spirit, with a more vigorous co-operation on the part of the faithful, which is in process of realization, will elevate the human personality to an intensity of force and grandeur productive of a new era to the church and to society--an era difficult for the imagination to grasp, and still more difficult to describe in words, unless we have recourse to the prophetic language of the inspired Scriptures. Is not such a demonstration of Christianity and its results anticipated in the following words? “We are about to see,” said Schlegel, “a new exposition of Christianity, which will reunite all Christians, and even bring back the infidels themselves.” “This reunion between science and faith,” says the Protestant historian Ranke, “will be more important in its spiritual results than was the discovery of a new hemisphere three hundred years ago, or even than that of the true system of the world, or than any other discovery of any kind whatever.” XII. MISSION OF RACES. Pursuing our study of the action of the Holy Spirit, we shall perceive that a deeper and more explicit exposition of the divine side of the church, in view of the characteristic gifts of different races, is the way or means of realizing the hopes above expressed. God is the author of the differing races of men. He, for his own good reasons, has stamped upon them their characteristics, and appointed them from the beginning their places which they are to fill in his church. In a matter where there are so many tender susceptibilities, it is highly important not to overrate the peculiar gifts of any race, nor, on the other hand, to underrate them or exaggerate their vices or defects. Besides, the different races in modern Europe have been brought so closely together, and have been mingled to such an extent, that their differences can only be detected in certain broad and leading features.