Sixth. Grand chorus: "Unfold Ye Portals." Seventh. Address by Hon. Grover Cleveland: MR. PRESIDENT, LADIES AND GENTLEMEN: The impressiveness of this occasion is greatly enhanced by reason of an atmosphere of prophecy's fulfillment which surrounds it. The thought is in our minds that we are amid awe-inspiring surroundings, where we may see and feel things foretold a century ago. We are here in recognition of the one hundredth anniversary of an event which doubled the area of the young American nation, and dedicated a new and wide domain of American progress and achievement. The treaty whose completion we to-day commemorate was itself a prophecy of our youthful nation's mighty growth and development. At its birth prophets in waiting joyously foretold the happiness which its future promised. He who was the chief actor in the United States in its negotiations, as he signed the perfected instrument, thus declared its effect and far-reaching consequences: "The instrument which we have just signed will cause no tears to be shed. It prepares ages of happiness for innumerable generations of human creatures. The Mississippi and the Missouri will see them succeed one another, truly worthy of the regard and care of Providence in the bosom of equality under just laws, freed from the errors of superstition and the scourges of bad government." He who represented the nation with whom we negotiated, when he afterwards gave to the world his account of the transactions, declared: "The consequences of the cession of Louisiana will extend to the most distant posterity. It interests vast regions that will become by their civilization and power the rivals of Europe before another century commences," and warmed to enthusiasm by the developments already in view and greater ones promised, he added: "Who can contemplate without vivid emotion this spectacle of the happiness of the present generation and the certain pledges of the prosperity of numberless generations that will follow? At these magnificent prospects the heart beats with joy in the breasts of those who were permitted to see the dawn of these bright days, and who are assured that so many happy presages will be accomplished." There was another prophet, greater than all--prophet and priest--who, higher up the mountain than others, heard more distinctly the voice of destiny, whose heart and soul were full of prophecy and whose every faculty was tense and strong as he wrought for our nation's advancement and for the peace and contentment of his fellow-countryman. From the fullness of gratitude and joy, he thus wrote to one who had assisted in the consummation of this great treaty: