Pause a moment to consider the famous world-events which made so much noise while these industrial processes were going on. The conquest of Canada, the victories of Clive in India, the Seven Years’ War, the successful revolt of the American colonies, the Declaration of Independence and formation of the American Constitution, the deeds of Frederic the Great, Pitt’s accession to power, Washington’s election to the Presidency, the Fall of the Bastille, the death of Mirabeau, the fall of the old French monarchy, the National Convention--all these great events which shook the world were contemporary with the industrial revolution in England; and that revolution was in promise and potency more important than them all. I will glance at the development of another great industry, that of iron. In former times iron was largely worked in the south of England, notably in Sussex, in a district now purely agricultural. By the middle of the 18th century, important iron industries had begun to cluster round Coalbrookdale; and here many of the industrial changes in the working of iron were first introduced. From 1766 to 1784 improvements were made in the mode of working malleable iron and of transferring cast into wrought iron. The puddling forge was invented in 1784; and it gave an immense impetus to the manufacture. In 1828 the use of the hot blast was substituted for cold air; in 1842 Nasmyth invented the steam-hammer; and in 1856 the Bessemer process of making steel was patented. Subsequently we have the Siemens regenerative furnace and gas producer, the use of machinery in lieu of hand labor for puddling, the casting of steel under great pressure, and the improvements in the Bessemer process. As a result of these inventions the increase in the production of steel during the last few years, especially in the United States and Great Britain, has been enormous. In all this we see the same series of phenomena, all tending to huge monopolies. Machinery supplants hand labor; production is greatly stimulated; the immense capital needed enables only the large producers to survive in the competitive conflict; and we get as the net result well defined aggregations of capital on the one hand, and dependent machine minders on the other.