With the remark that "it was all one to him, so long as he could earn his living," the man placed his bricks, and began his round. Half an hour afterward, at least five hundred people were watching his mysterious movements. He had assumed a military step and bearing, and, looking as sober as a judge, he made no response whatever to the constant inquiries as to the object of his singular conduct. At the end of the first hour, the sidewalks in the vicinity were packed with people, all anxious to solve the mystery. The man, as directed, then went into the Museum, devoting fifteen minutes to a solemn survey of the halls, and afterward returning to his round. This was repeated every hour until sundown, and whenever the man went into the Museum a dozen or more persons would buy tickets and follow him, hoping to gratify their curiosity in regard to the purpose of his movements. This was continued for several days--the curious people who followed the man into the Museum considerably more than paying his wages--till finally the policeman, to whom Barnum had imparted his object, complained that the obstruction of the sidewalk by crowds, had become so serious that he must call in his "brick man." This trivial incident excited considerable talk and amusement; it advertised Barnum; and it materially advanced his purpose of making a lively corner near the Museum. Barnum realized above all that to have people pleased with his attractions was the best advertisement he could possibly have, and he tried honestly to keep the Museum supplied with every novelty. A curiosity which possessed some merit, and considerable absurdity was the celebrated model of Niagara, "with real water." One day the enterprising proprietor was called before the Board of Water Commissioners, and informed that he must pay a large extra compensation for the immense amount of water that supplied his Niagara. To the astonishment of the Board Mr. Barnum gave his assurance that a single barrel of water per month served to run the machine. Apropos of this wonderful model, Barnum used to tell how he got even with his friend, Louis Gaylord Clark, editor of the Knickerbocker, an inveterate joker, and who was fond of guying the Museum. The first time Clark viewed "Niagara" he assumed great admiration. "Well, Barnum, I declare, this is quite an idea; I never saw the like of this before in all my life." "No?" inquired Barnum, quite pleased. "No," said Clark, fervently, "and I hope to the Lord, I never will." Barnum might have forgiven this, but Clark's next joke was too much to bear. He came in one day and asked Barnum if he had the club with which Captain Cook was killed. The Museum boasted a large collection of Indian curiosities, and Barnum showed one warlike weapon which he assured Clark was the identical club and he had all the documents to prove it.