We congratulate the Mayors of both the cities, with their associates in the government of them, on the public spirit manifested by both, on the ampler opportunities offered to each, and on those intimate alliances between them which are a source of happiness to both, and which are almost certainly prophetic of an organic union to be realized hereafter. And we trust that the crosses, encircled by the laurel wreath, on the original seal of New Amsterdam, with the Dutch legend of this city, "Union makes Strength," may continue to describe them, whether or not stamped upon parchments and blazoned on banners, as long as human eyes shall see them. The work now completed is of interest to both cities, and its enduring and multiplying benefits will be found, we are confident, to be common, not local. We who have made and steadfastly kept our homes in Brooklyn, and who are fond and proud of the city--for its fresh, bracing, and healthful air, and the brilliant outstretch of sea and land which opens from its Heights; for its scores of thousands of prosperous homes; for its unsurpassed schools, its co-operating churches, the social temper which pervades it, the independence and enterprise of its journals, and the local enthusiasms which they fruitfully foster; for its general liberality, and the occasional splendid examples of individual munificence which have given it fame; for its recent but energetic institutions, of literature, art, and a noble philanthropy; and for the stimulating enterprise and culture of the young life which is coming to command in it--we have obvious reason to rejoice in the work which brings us into nearer connection with all that is delightful and all that is enriching in the metropolis, and with that diverging system of railways, overspreading the continent, which has in the commercial capital its natural centre of radiation.