Two days after the departure of the Seventh regiment, the Seventy-first, since renowned for its bravery at Bull Run, the Sixth, and Twelfth, all city regiments of New York, took the same glorious track, and were hailed with like enthusiasm. In military drill and social position, some of these regiments were not inferior to the Seventh, and their departure was witnessed by a concourse of people equal to that which filled the streets on the 19th. It was with pride that a city saw her first quota of soldiers departing _en route_ for Washington, to take the Empire share with the troops of other loyal states in the contest now inaugurated. The spectacle, instead of being a great pageant, had all the grandeur and solemnity of a step in one of those crises of events which involve individual and national life—engraving new names and new dynasties upon the tablets of history. As if to make the departure of these troops more memorable, a large American flag, forty feet long by twenty wide, was flung out upon a flagstaff from a window in Trinity steeple, at a height of two hundred and forty feet. The chimes meanwhile played several airs appropriate to the occasion, among which were “Yankee Doodle,” “The Red, White and Blue,” winding up with “All’s Well.” A flagstaff with a splendid flag attached, was also run out of a window over the portico in front of St. Paul’s Church. Thus under these mighty banners, furling and unfurling in the wind and hedged in by triple walls of human beings, amid the resonant chimes of Trinity, the crash of their own magnificent bands drowning the “God bless you” of many a gentle heart, the city of New York sent its first regiments to the field. As each regiment passed through New York the concourse of people to see it off increased, till every fresh march was a triumph in advance of the brave deeds the soldiers were expected to perform. In less than a week banners and flags had become so thick across Broadway, that they fairly canopied the departing troops, and shouts loud and deep sent them on the way with many a blessing and hearty God speed.