As we regard the class with a sympathetic thrill of satisfaction, the story of the origin of the Turkish Empire is recalled: “A race of slaves, living in the mountain regions of Asia, are employed by a powerful Khan to forge weapons for his use in war. A bold chief persuades them to use the weapons forged for a master to secure their own deliverance. For centuries after they had thus conquered their freedom, the Turkish people celebrated their liberation by an annual ceremony in which a piece of iron was heated in the fire, and a smith’s hammer successively handled by the prince and his nobles.”

The greatest empire in the world to-day is the empire of the art of mechanism, and its most potent instrument is iron. Once the perpetuity of governments depended upon the mere possession of the dingy ore. When Elizabeth came to the throne, in the middle of the sixteenth century, England was almost defenceless, owing to the short supply of iron. Spain, much better equipped, hence relied confidently upon her ability to subdue the English. But the Virgin Queen, comprehending the nature of the crisis, imported iron from Sweden and encouraged the Sussex forges, and the Spanish Armada was defeated. Thus the smelter and the smith became the bulwark of the British government.

But at an earlier period the fraternity of smiths gave direction to the course of empire. The secret of the easy conquest of Britain by the Normans was their superior armor. They were clad in steel, and their horses were shod with iron. The chief farrier of William became an earl; and he was proud of his origin, for his coat of arms bore six horseshoes.

Iron and civilization are terms of equivalent import. Iron is king, and the smelter and smith are his chief ministers. It is not known when, by whom, or how the art of smelting iron was discovered. As well ask by whom and how fire was discovered? These are secrets of the early morning of human life—of that time when man made no record of his struggles.

In lieu of history the instructor resorts to tradition, repeating the following legend: “While men were patiently rubbing sticks to point them into arrows, a spark leapt forth and ignited the wood-dust which had been scraped from the sticks, and so fire was found.”

Now the “helper” looks to his “blast” with keen interest; for the management of the forge-fire is one of the niceties of the smith’s art. He stirs the fire a little impatiently. The instructor heeds the act, but not the movement of impatience. On the contrary he seizes the occasion to introduce the subject of coal. Question follows question in rapid succession, and the answers are prompt and satisfactory, touching all modern aspects of the subject, namely, the magnitude of the annual “output,” the localities of heaviest production, the cost of mining; the uses, respectively, to which different qualities are applied, demand and supply, and market value or price. Here the instructor remarks that the mining, transportation, and sale of coal are conducted in this country by a number of large corporations, with an aggregate capitalization and bonded indebtedness of six or seven hundred million dollars, and that through combinations between these corporations the price is often arbitrarily advanced. “But,” he concludes, “the discussion of that branch of the subject belongs more properly to the class in political economy.”

The history of coal in its relation to iron smelting and manufacture forms a curious chapter in the vicissitudes of the useful arts. One hundred and fifty years ago not only all the smith’s fires but the smelter’s fires were kept up with charcoal. The forests of England were literally swept away, like chaff before the wind, to feed the yawning mouths of the iron mills. To make a ton of iron required the consumption of hundreds of cords of wood. To save the timber restrictive legislation was adopted, and the mills were gradually closed for want of fuel, until, in 1788, there was not one left in Sussex, and only a small number in the kingdom. Meantime the English iron supply came from Sweden, Spain, and Germany. England seemed to be following in the footsteps of the Roman Empire. The Romans accomplished in iron smelting and forging just what might be expected of a warlike people. They required iron for arms and armor, and in smelting skimmed the surface. This is proved by the cinder heaps, rich in ore, which they left in Britain. Archæologists trace the decline of Rome in her monuments, which show a steady deterioration in the soldier’s equipment. Alison attributes this decline to the exhaustion of her gold and silver mines. A far more plausible conjecture is found in the waste of timber in fuel for smelting purposes, and the resulting failure of the iron supply.

The fall of the Roman Empire may be accounted for by her neglect of the useful arts. The nation that converts all her iron into swords and spears shall surely perish. Had the city of Seven Hills possessed seven men of mechanical genius like Watt, Stephenson, Maudslay, Clement, Whitney, Neilson, and Nasmyth, her fall might have been averted, or if not averted, it need not have involved the practical extinction of civilization, thus imposing upon mankind the shame of the Dark Ages.

At the beginning of the seventeenth century there was much ignorant prejudice against the use of mineral coal. It was believed to be injurious to health. All sorts of diseases were attributed to its supposed malignant influence, and at one time to burn it in dwellings was made a penal offence. But this prejudice did not extend to its use in smelting iron, and whatever there was of inventive genius was devoted to a solution of the problem of its adaptation to such purposes. Mr. Samuel Smiles has collected the names of the most prominent of these Dutch and German mechanics, namely, Sturtevant, Rovenzon, Jordens, Francke, and Sir Philibert Vernatt, and given each a niche in the temple of fame. Some of them had a true conception of the required processes, but they all failed to render the application practically available.

It remained for Dud. Dudley to succeed in making a thoroughly practical application of mineral coal to iron-smelting purposes, and then curiously enough to fail of success in introducing it into general use. Dudley was born in 1599, in an iron-manufacturing district. His father owned iron-works near the town of Dudley, which was a collection of forges and workshops where “nails, horseshoes, keys, locks, and common agricultural tools” were made. Brought up in the neighborhood of “twenty thousand smiths and workers in iron,” young Dudley “attained considerable knowledge of the various processes of manufacture.” At twenty years of age he was taken from college and placed in charge of a furnace and two forges in Worcestershire, where there was a scarcity of wood but an abundance of mineral coal. He began immediately to experiment, with a view to the substitution of the latter for the former, and in a year succeeded in demonstrating “the practicability of smelting iron with fuel made from pit-coal, which so many before him had tried in vain.” But the charcoal iron-masters combined to resist the new method because it cheapened the product. They instigated mobs to destroy Dudley’s furnaces one after another, as soon as they were completed, harassed him with lawsuits, and finally beggared and drove him to prison. Then they tried to wring his secret from him. To this attempt Cromwell, who was interested in furnaces in the Forest of Dean, is said to have been a party. But all these efforts failed, and Dudley died in 1684 carrying his secret with him to the grave, and there the secret slumbered nearly one hundred years.