"While it is melting," explained Dr. Syx, "certain elements, the nature of which I must beg to keep secret, are mixed with the ore, causing chemical action which results in the extraction of the metal. Now let me show you pure artemisium issuing from the furnace." He led the visitors through two apartments into a third, one side of which was walled by the front of a furnace. From this projected two or three small spouts, and iridescent streams of molten metal fell from the spouts into earthen receptacles from which the blazing liquid was led, like flowing iron, into a system of molds, where it was allowed to cool and harden. The financiers looked on wondering, and their astonishment grew when they were conducted into the rock-cut store-rooms beneath, where they saw metallic ingots glowing like gigantic opals in the light which Dr. Syx turned on. They were piled in rows along the walls as high as a man could reach. A very brief inspection sufficed to convince the visitors that Dr. Syx was able to perform all that he promised. Although they had not penetrated the secret of his process of reducing the ore, yet they had seen the metal flowing from the furnace, and the piles of ingots proved conclusively that he had uttered no vain boast when he said he could give the world a new coinage. But President Boon, being himself a metallurgist, desired to inspect the mysterious ore a little more closely. Possibly he was thinking that if another mine was destined to be discovered he might as well be the discoverer as anybody. Dr. Syx attempted no concealment, but his smile became more than usually scornful as he stopped a laden car and invited the visitors to help themselves. "I think," he said, "that I have struck the only lode of this ore in the Teton, or possibly in this part of the world, but I don't know for certain. There may be plenty of it only waiting to be found. That, however, doesn't trouble me. The great point is that nobody except myself knows how to extract the metal." Mr. Boon closely examined the chunk of rock which he had taken from the car. Then he pulled a lens from his pocket, with a deprecatory glance at Dr. Syx. "Oh, that's all right," said the latter, with a laugh, the first that these gentlemen had ever heard from his lips, and it almost made them shudder; "put it to every test, examine it with the microscope, with fire, with electricity, with the spectroscope--in every way you can think of! I assure you it is worth your while!" Again Dr. Syx uttered his freezing laugh, passing into the familiar smile, which had now become an undisguised mock. "Upon my word," said Mr. Boon, taking his eye from the lens, "I see no sign of any metal here!" "Look at the green specks!" cried the doctor, snatching the specimen from the president's hand. "That's it! That's artemisium! But it's of no use unless you can get it out and purify it, which is my secret!"