[FROM OUR REPORTER.] After the termination of the meeting held in this town on Monday last, our reporter was surprised to see a large concourse of persons, exclusively of the labouring classes, hurrying from one street to another, apparently in a most excited manner. On making inquiry, it was ascertained that this demonstration was made in order to prevent the merchants and manufacturers from exporting the corn or provisions of the town, for which purpose upwards of a dozen ships were lying in the harbour. After visiting several of the corn stores with the apparent intention of intimidating the proprietors, the mob proceeded down to the quay, where they speedily compelled some carmen, who were loading the vessels with corn for exportation, to desist and return to the stores; on coming back, they met another carman who however, did not remain to receive the injunctions of the mob, but immediately turned the horse’s head, and commenced a speedy retreat amidst the cheers and jeers of the multitude. Not satisfied with their success in these instances, they turned towards another portion of the quay, where they succeeded in a similar manner.

Up to four o’clock there proceedings were confined to preventing the exportation of provisions; and by the respectable portion of the inhabitants, it was anticipated that no actual violence would be the result; but unfortunately their expectations were frustrated. The mob, elated probably by the success of their first attempt, commenced at a later period of the day to demolish the flour and bread shops, which was only partially prevented by the interference of the Military. I understand, in consequence of the extent to which these outrages were carried, that Mr. Keily, J.P., arrived in this City on yesterday, for the purpose of consulting with the General of the district, and obtaining a large reinforcement of military.