Soon after this affair in Seventh Avenue, word was telegraphed that Jackson's foundry, corner of Twenty-eighth Street, First and Second Avenues, was threatened. A military force was despatched forthwith to it, piloted by four policemen. At Twenty-first Street and First Avenue, they were fired on by the mob. The attack was continued through the street to Second Avenue, and up this to Twenty-fifth Street, without any notice being taken of it by the troops. Made reckless by this forbearance, the rioters began to close up in more dangerous proximity, when the howitzer was unlimbered and pointed down the avenue. The mob not liking the looks of this, scattered, when the column resumed its march. The mob then rallied, and followed after, with shouts and distant shots, till the foundry on Twenty-eighth Street was reached. Here another mob came up from First Avenue, and the two made a simultaneous attack. The command was then given to fire, and a volley was poured into the crowd. Rapidly loading and firing, the troops soon stretched so many on the pavement, that the rest broke and fled. The military then entered the building and held it. The mob gathered around it, threatening to storm it, but could not pluck up courage to make the attempt. They seemed especially exasperated against the policemen, and had the effrontery to send a committee to the officer in command, demanding their surrender. If their request was refused, they declared they would storm the building at all hazards; but if complied with, they would disperse. The committee had to shout out their demands from the street. In reply, the officer told them if they did not take themselves off instantly, he would fire upon them; upon which they incontinently took to their heels. As the day wore on, things began to wear a still more threatening aspect. Despatches came in from every quarter, announcing the activity of the mob. To a question sent to the Thirteenth Precinct, a little past twelve, inquiring how things were going on in Grand Street, was returned the following reply: "Lively; store-keepers have fired into the mob; no force there yet." 12.20. From Twenty-first. Building corner Thirty-third Street, Second Avenue, is set on fire by the mob. 12.50. From Fifteenth. Send assistance to Twenty-first Precinct; they are about attacking it. 12.55. From Twenty-sixth. It is reported that Government stores in Greenwich, near Liberty, are on fire; fired by mob. 1.10. From Twenty-seventh. Send more men here forthwith. 1.25. From Fourth. Fire corner of Catharine Street and East Broadway. 1.45. A man just in from Eleventh Precinct, reports a number of bands of robbers, numbering from fifty to one hundred each, breaking into stores in Houston, near Attorney Street. 1.47 P.M. From Twenty-ninth. The mob have cleared Twenty-first Precinct station-house.