As the increase of population in a healthy and thriving state of society leads to an additional increase, and constantly adds to the breadth of the basis on which the pyramid of the national prosperity is rested, so a decline in the numbers of the people is attended by a precisely opposite effect. In the first case, the prosperity of every one class reacts upon the prosperity of every other class; in the last case, their suffering communicates itself in an equally decisive way to every class around them. As thus the great trade of every nation is that which goes on between the town and the country, and each finds its chief market in the wants of the other, it is impossible that either can suffer without the other class dependent on the sale of its produce suffering also. Extraneous causes, simultaneously acting on the market, may for a time prevent this effect becoming conspicuous; but in the long run it is sure to make itself felt. If the farmers are suffering, the manufacturers will speedily experience a falling off in the home markets; if the manufacturers, the farmers are as certain of finding a diminution in the consumption of their rude produce. It is now ascertained by Captain Larcom’s report, that the wheat grown in Ireland is less by 1,500,000 quarters than it was five years ago; and by the reports of the English markets for home grain, that a shortcoming to a similar amount has taken place in the home supplies of grain for the county markets. 3,000,000 quarters less of wheat is raised in England and Ireland than was done before Free Trade began. Supposing that an equal amount of other kinds of grain has gone out of cultivation, which is a most moderate supposition, seeing that 10,000,000 quarters of foreign grain are now annually imported, when there were not 2,000,000 before, we have 6,000,000 less quarters of grain annually raised in Great Britain than was done before Free Trade was introduced! The defalcation has been nearly as great in the supplies of cattle, sheep, and other animals brought to the English market. Beyond all doubt the value of the produce that is raised has sunk a fourth. The total agricultural produce of the two islands has been estimated, before Free Trade began, at £250,000,000. At this rate, the loss the cultivators have experienced from this source alone is above £60,000,000 a-year. The Free-Traders boast that it is £90,000,000; and considering the diminution in the supplies of grain and cattle raised at home, the estimate is not much overcharged. At all events, it is probably £75,000,000. This is the real cause of the prodigious emigration which is going on from every part of the country; and as this cause is permanent and ceaseless in its operation, the decline of our population may be expected to be as continuous and progressive.