But our work embraces another topic; the progress of commercial enterprise from the earliest period to the present time. That an extensive and interesting field is thus opened to us will be evident, when we contrast the state of the wants and habits of the people of Britain, as they are depicted by Cæsar, with the wants and habits even of our lowest and poorest classes. In Cæsar's time, a very few of the comforts of life,--scarcely one of its meanest luxuries,--derived from the neighbouring shore of Gaul, were occasionally enjoyed by British Princes: in our time, the daily meal of the pauper who obtains his precarious and scanty pittance by begging, is supplied by a navigation of some thousand miles, from countries in opposite parts of the globe; of whose existence Cæsar had not even the remotest idea. In the time of Cæsar, there was perhaps no country, the commerce of which was so confined:--in our time, the commerce of Britain lays the whole world under contribution, and surpasses in extent and magnitude the commerce of any other nation. The progress of discovery and of commercial intercourse are intimately and almost necessarily connected; where commerce does not in the first instance prompt man to discover new countries, it is sure, if these countries are not totally worthless, to lead him thoroughly to explore them. The arrangement of this work, in carrying on, at the same time, a view of the progress of discovery, and of commercial enterprise, is, therefore, that very arrangement which the nature of the subject suggests. The most important and permanent effects of the progress of discovery and commerce, on the wealth, the power, the political relations, the manners and habits, and the general interests and character of nations, will either appear on the very surface of our work, or, where the facts themselves do not expose them to view, they will be distinctly noticed.