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Updated: May 20, 2025
From a peculiar look that the man gave him, he saw that he also was recognised. Oliver took no further notice of him at the time, however, but turned to watch the flow of the molten tin. When the iron cauldron was almost full, "slag," or molten refuse began to flow and cover the top of the metal.
My purpose in slackening my heat as soon as the pig-iron was melted was to oxidize the phosphorus and sulphur ahead of the carbon. Just as alcohol vaporizes at a lower heat than water, so sulphur and phosphorus oxidize at a lower heat than carbon. When this reaction begins I see light flames breaking through the lake of molten slag in my furnace.
Upon adding to the fuel a small quantity of flux, all the mineral parts thereof can be melted into a liquid slag, which may be carried off just like that of blast furnaces.
There had been two hellburners; the cities on which they had fallen were still-smoking pits literally burned into the ground and the bedrock below, at the center of five hundred mile radii of slag and lava and scorched earth and burned forests. There had been a planetbuster; it had started a major earthquake. And half a dozen thermonuclears.
Its volcanic slag fell again into the chimneys of the crater or rolled down the mountain slopes, falling into the waves. More to the west, isolated and solitary in a sea free from shoals, was Ustica, an abrupt and volcanic island that the Phoenicians had colonized and which had served as a refuge for Saracen pilots. Its population was scant and poor.
Three or four surfacers worked on each side of a square of ruins. The brick and stone wreckage crumbled, slid forward, and presently spread out into white-hot pools of sticky slag, which the levelling-rods smoothed more or less flat. Already a third of the big block had been so treated, and was cooling to dull red before our astonished eyes. 'It is the Old Market, said De Forest.
"But a ship is long, long o' comin'," said Slag to Jarring as he accompanied the latter part of the way to the beacon-fire one night when it was Black Ned's turn to watch. "A ship'll come, Joe, when God sees fit to send it," said Ned. Slag glanced at his comrade in surprise, the reply was so very unlike Ned's usual style of speech that he felt uncertain whether it was uttered in earnest.
It is a singular fact that, although iron, copper, gold and silver abound in the mountains in Arizona, no tools, utensils or ornaments of these metals are found in the mounds or ruins. Yet furnace-like structures of ancient origin have been found, which appear to have been used for reducing ores, and in and around which can be found great quantities of an unknown kind of slag.
But he gave his full mind to each clod, and going away for a few weeks he returned with a machine that extracted greater treasure from the slag than men had ever gained from the mines. All wise men unite in telling us that ours is a world where prosperity is won by fidelity to details, and that wealth comes through little improvements.
SLAG He will find a wise plan yet. THIEF It is too late. AGMAR It is too late? THIEF The dromedary men are here. OOGNO We are lost. AGMAR Be silent! I must think. Citizens enter and prostrate themselves. AGMAR They left us here and went to find the gods. A fish once took a journey into a far country to find the sea.
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