Mr. William Marshall, Gen. Henry W. Slocum, were also connected with the work at the outset, and, with intervals in the period of their service, have given it important assistance to the end; while others are with us who have joined with intelligence, enthusiasm, and helpfulness in the councils of the Board at different times. We rejoice in the presence of all those who, earlier or later, have taken part in the plans, at once vast and minute, which now are realized. We offer them the tribute of our admiring and grateful esteem. We trust that their remembrance of the work they have accomplished, and their personal experience of its manifold benefits, may continue through many happy years. And we congratulate ourselves, as well as them, that the city will keep the memorial of them, not in yonder tablets alone, but in the great fabric above which those stand, while stone and steel retain their strength. But, after all, the real builder of this surpassing and significant structure has been the people: whose watchfulness of its progress has been constant, whose desire for its benefits has been the incentive behind its plans, by whom its treasury has been supplied, whose exultant gladness now welcomes its success. The people of New York have illustrated anew their magnanimous spirit in cheerfully supplying their share of the cost, though not anticipating from such large outlay direct reliefs and signal advantages. The people of Brooklyn have shown at least an intelligent, intrepid, and far-sighted sagacity, in readily accepting the immediate burdens in expectation of future returns. Such a popular achievement is one to be proud of. St. Petersburg could be commenced 180 years ago--almost to a day, on May 27th, 1703--and could afterward be built, by the will of an autocrat, to give him a new centre of empire, with a nearer outlook over Europe; its palaces rising on artificial foundations, which it cost, it is said, 100,000 lives in the first year to lay. Paris could be reconstructed, twenty-five years ago, by the mandate of an emperor, determined to make it more beautiful than before, to open new avenues for guns and troops, to give to its laborers, who might become troublesome, desired occupation. But not only have these cities of ours been founded, built, reconstructed by the people, but this charming and mighty avenue in the air, by which they are henceforth rebuilt into one, is to the people's honor and praise. It shows what multitudes, democratically organized, can do if they will. It will show, to those who shall succeed us, to what largeness of enterprise, what patience of purpose, what liberal wisdom, the populations now ruling these associated cities were competent in their time. It takes the aspect, as so regarded, of a durable monument to Democracy itself.