Johnny held in each hand a camp-stool for Uncle and Aunt, and he arranged the stools for them to sit awhile before that wonderful scene. Not long after, they were marching down that aisle called Columbia avenue. They felt themselves every inch as citizens of a great republic. It is not a very long thoroughfare--only a third of a mile--but they were two hours on the way. Uncle was a common, everyday American citizen when he started. At each step it seemed to him he swelled in his own estimation. At the clock tower he was proud enough to ascend that structure and make a Fourth of July speech. At the end of his walk he wanted to wear an eagle on his hat and shout till his throat should be stiff. It was not solely as an American that he was filled with exultation but as a member of the human race. He was lifted up with pride in the achievements of his fellow-man and in satisfaction that his own country was the host of such a splendid company. Columbia avenue is the broad thoroughfare which traverses the center of the greatest building that ever was. It runs through the Manufactures and Liberal Arts building from the grand court to the plaza at the northern end. A walk down this thoroughfare is like a tour of the world in sixty minutes. Though, if you are to do it in sixty minutes, you must fifty times repress an impulse to linger beside some new marvel in the handiwork of man and go marching on. You cannot beat the record in a trip around the world and stop and see all the grand cathedrals and picturesque ruins and beautiful women and inviting galleries of art. Columbia avenue is a picture never to be surpassed. It is a cleanly and an attractive thoroughfare for the world of tourists who throng the way. The path is no longer littered with lumber and boxes and kegs of paints. The horizon--for this vast enclosure has its horizon--is no more filled with a fine, white mist rising from the efforts of workmen to push and chisel blocks of staff into their appropriate places. It is a colossal field of process and a panorama of result. The world can not produce a more noble and inspiring place. It is the avenue down which the man on whom fate has fallen and whose steps in this world are few should choose to expend the last remaining atoms of his strength.