In certain cases, the increase in the number of hands employed is only apparent; that is, it is not due to the extension of the factories already established, but to the gradual annexation of connected trades; for instance, the increase in power looms, and in the hands employed by them between and was, in the cotton trade, simply owing to the extension of this branch of industry; but in the other trades to the application of steam power to the carpet loom, to the ribbon loom, and to the linen loom, which previously had been worked by the power of men.