But, lastly, the principal cause consists in the powerful increase of the demand for money, which, during the last two centuries, the great impulse given to the rapidity of circulation, and the great increase in the substitutes for money, have scarcely been able to outweigh. Besides the great growth of population and of wealth, at least in Europe and the new world, I need call attention only to the immense advance made in the division of labor, and to the transition from trade by barter to trade through the instrumentality of money. The entire war and merchant marine of England, about 1602, had, according to Anderson, a capacity of only 45,000 tons,—that is, not one-fifth of what the small city of Bremen has now; a capacity which at the close of the year 1873 amounted to 237,206 tons—while in 1872 its merchant marine alone had a capacity of 7,213,000 tons. The aggregate foreign trade of England, France, Russia and the United States, in 1750, amounted to about 260,000,000 thalers; in 1864, it was over 5,400,000,000, and between 1871 and 1872, in one year, over 9,000,000,000 thalers. Nor should it be forgotten that Europe’s trade with the East, since the beginning of the sixteenth century, increased immensely. This, at present, produces uniformly a very “unfavorable balance” for Europe, which can be made up for only by very large shipments of silver to foreign parts.(860) If China and India were suddenly to draw on us for other commodities instead of gold and silver, the result would be a great revolution in prices in Europe. Section CXXXIX. History Of Prices.—Californian And Australian Discoveries. Tengoborski is of opinion, that the flow of gold from Siberia alone would have been absorbed by the ever-increasing want of civilized nations of money; but that the coincident discoveries in California and Australia, in September 1847, and February 1851, must sooner or later produce a revolution in prices. And, indeed, the fecundity of these countries is unparalleled. North America, which in 1846 produced only 3,600 pounds of gold, according to Sœtbeer, produced in the years from 1849 to 1863, respectively, 118,000, 148,000, 178,000, 195,000, 180,000, 165,000, 165,000, 165,000, 160,000, 145,000, 125,000, 120,000, 115,000 and 110,000. Austria produced in the years from 1851 to 1863 respectively, 27,000, 196,000, 250,000, 160,000, 170,000, 195,000, 180,000, 175,000, 160,000, 150,000, 160,000, 160,000, 170,000, pounds of gold.