one million acres only were inclosed in the thirty years from 1820 to 1849.[18] If we look then, as we shall briefly do, at the wonderfully increased production of Great Britain, we shall be naturally led to the conclusion that some cause, much more efficient than the inclosure of waste lands, has given us the means of feeding a population which has doubled since the beginning of the century. This production is the result of the whole course of improvement effected by science, and stimulated by capital. The Bedford Level was drained by our ancestors. The fens of Cambridgeshire and Lincolnshire have been drained effectually in our time. That luxuriant flat now rejoices in waving corn-crops over many a mile. A few years ago it was a land of stagnant ditches; where little wind-mills, that looked to the solitary traveller through that cold district like the toys of children, lifted the water out of the trenches, and left an isolated acre or two of dry earth for man to toil in. Now mighty steam-pumps carry the water into artificial rivers, and the whole region is unrivalled for fertility. It is estimated by some statists that the average consumption of wheat for each individual of the population is eight bushels. Others estimate that consumption at six bushels. It will be sufficient for a broad view of the increase of production, as compared with the increase of population, to take the consumption at eight bushels, or a quarter of wheat per head. In the ten years from 1801 to 1810, deducting an annual average of 600,000 quarters of foreign wheat and flour imported, the population in 1811 being 11,769,725, the number fed by wheat of home growth was somewhat above eleven millions. In the ten years from 1841 to 1850, deducting an annual average of 3,000,000 quarters of foreign wheat and flour, the population in 1851 being 21,121,967, the number fed by wheat of home growth was somewhat above eighteen millions. The productive power of the country had increased, in the course of fifty years, to the enormous extent of giving subsistence, in one article of agricultural produce alone, to seven millions of people. The population in 1751 was estimated at little more than seven millions. It has trebled in a century; and we may be perfectly sure that the production of the land has far more than trebled in that period. The probability is that it has quadrupled; for there is no doubt that the great bulk of the people are better fed than in 1751, when rye-bread was the common sustenance of the great body of labourers throughout the country.