During the past three years, the smallest estimate which can be formed of the quantity of cane sugar that has been replaced by beet root sugar in the chief European countries, is about 80,000 tons annually, with the certainty that, year after year, the consumption will become exclusively confined to the former, to the greater exclusion of the latter; unless some great change shall take place in the relative perfection and manufacture of the two different descriptions of produce. Although, observes the _Economist_, the beet root sugar produced in France, Belgium, Germany, and other parts of the continent is not brought into competition in our own markets with the produce of the British colonies, yet it must be plain that the exclusion of so much foreign cane sugar from the continent, which was formerly consumed there, must throw a much larger quantity of Cuba and Brazilian sugar upon this market; and by this means the increased production of beet root sugar, even in those countries where it is highly protected, does indirectly increase the competition among the producers of cane sugar in our market. So early as 1747, a chemist of Berlin, named Margraf, discovered that beet root contained a certain quantity of sugar, but it was not until 1796 that the discovery was properly brought under the attention of the scientific in Europe by Achard, who was also a chemist and resident of Berlin, and who published a circumstantial account of the progress by which he extracted from 3 to 4 per cent. of sugar from beet root. Several attempts have been made, from time to time, to manufacture beet root sugar in England, but never, hitherto, on a large and systematic scale. Some years ago a company was established for the purpose, but they did not proceed in their operations. A refinery of sugar from the beet root was erected at Thames Bank, Chelsea, in the early part of 1837. During the summer of 1839 a great many acres of land were put into cultivation with the root, at Wandsworth and other places in the vicinity of the metropolis. The machinery used in the manufacture was principally on the plan of the vacuum pans, and a fine refined sugar was produced from the juice by the first process of evaporation, after it had undergone discolorization. Another part of the premises was appropriated to the manufacture of coarse brown paper from the refuse, for which it is extensively used in France. A refinery was also established about this period at Belfast, in the vicinity of which town upwards of 200 acres of land were put into cultivation with beet root for the manufacture of sugar.