"The total amount of British manufactures annually produced is about £180,000,000 worth, of which only £47,000,000 is taken off by the whole external trade of the world put together, while no less than £133,000, 000 is consumed in the home market; and of the foreign consumption, fully a third is absorbed by the British Colonies, in different parts of the world. So that the home and colonial trade is to the whole foreign put together as 5 to 1. And, whle the total produce of manufactures is £180,000,000 annually, and of mines and minerals £13,776,000, the amount of agricultural produce annually extracted from the soil is not less than £300,000,000; or a half more than the whole manufactures and mines put together." Further, if we compare the proportion purchased of our manufactures, which is taken off by foreign nations, for the export to whom we are required to make the sacrifice of our domestic agriculture, with what is consumed by our own native population, whether in the British islands or in our colonies of British descent, the difference is prodigious, and such as might well, even for their own sake, make the Anti-corn-law League pause in their career of violence. From the tables compiled from Porter's _Parliamentary Tables_, and the population of the different states to whom we export, taken from Malte Brun and Balbi, it appears, that while the British population, whether at home or abroad, consume from £3 to £5 a-head worth of our manufactures, the foreign nations to whom we are willing to sacrifice the British agriculturists, take off per head ONLY AS MANY PENCE. In preferring the one to the other, therefore, we are, literally speaking, penny wise and pound foolish. We have shown how agriculture was ruined in the Roman empire in Italy, by the free importation of grain from the Lybian and Egyptian provinces of the empire. As a contrast to that woful progress, the main cause of the destruction of the empire of the Caesars, we request the attention of our readers to the progress of British exports in official value, which indicates their amount from 1790 to 1840, premising that the _whole_ of that period was one of protection to the British agriculturist; during the first twenty years of the period, by the effects of the war--during the last twenty-five, by the operation of the corn law and sliding scale, introduced in 1814. We recommend the advocates of free trade to search the annals of the world for a similar instance of progress and prosperity flowing from, or co-existent with, the practical adoption of their principles.