afflict all Europe; and in the overthrow of our empire, from the corroding effect of the calamities they will induce, the ultimate destiny of all the states of modern times. That these views are melancholy, all will admit; that they are important if true, none will deny; that they are new, at least in this country, will be conceded by the best informed. They come, however, recommended to us, not merely by the powerful arguments and copious facts by which they are supported, but by the peculiar turn of mind, and varied qualifications, of the author by whom they are supported. We have long been of opinion, that it is the separation of political economy from history which is the chief cause of the numerous errors into which, since the days of Adam Smith, its professors have been betrayed, and the general discredit into which the science itself has fallen with a large portion of the thinking men in the community. This effect has taken place, as it was very natural it should in the infancy of a science, from the habit into which philosophers and men of abstract thought were led, of reasoning on human affairs as if they were the movement of inanimate bodies, and considering only their own arguments, not the illustration of their truth or falsehood which experience has afforded. This habit is peculiarly conspicuous in the advocates of free-trade, the reciprocity system, and Mr Malthus's doctrines on pauperism and the poor-laws; they rest on abstract arguments, and are perfectly indifferent to the refutation of their principles which every day's experience is affording. Probably the whole present generation of political economists must go to their graves before this general error is eradicated from the human mind. It is an error, however, of the most fatal kind, and which, while it is persevered in, must render political economy one of the greatest of the many curses, which the eating of the fruit of the tree of knowledge has let loose upon mankind. It is like a system of medicine, formed, as such systems are in every age, not on experience or observation, but on the theories of certain physicians on the structure of the human body, and the proper way of developing its various functions. Many a patient in every age has been killed, before the absurdity of such theories has been put down by the experience and common-sense of mankind. And many a nation, in Sismondi's opinion, will perish, before the nostrums of its state physicians have been expelled from the general opinion of man.