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The ore which is obtained from these mines, if sufficiently rich to justify the operation, is transferred to the smelting furnaces, where the pure metal is melted down and extracted from the virgin fossil. If, on the contrary, the ore is deemed of inferior quality, it is then submitted to the process of amalgamation.
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p.180

 

Josiah Gregg

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The moliendas, or crushing-mills (arrastres, as called at some mines), employed for the purpose of grinding the ores, are somewhat singular machines. A circular (or rather annular) cistern of some twenty or thirty feet in diameter is dug in the earth, and the sides as well as the bottom are lined with hewn stone of the hardest quality. Transversely through an upright post which turns upon its axis in the center of the plan, passes a shaft of wood, at each end of which are attached by cords one or two grinding stones with smooth fiat surfaces, which are dragged (by mules fastened to the extremities of the shaft) slowly around upon the bottom of the cistern, into which the ore is thrown after being pounded into small pieces. It is here ground, with the addition of water, into an impalpable mortar, by the constant friction of the dragging stones against the sides and bottom of the cistern. A suitable quantity of quicksilver is perfectly mixed with the mortar; to which are added some muriates, sulphates, and other chemical substances, to facilitate the amalgamation. The compound is then piled up in small heaps, and not disturbed again until this process is supposed to be complete, when it is transferred to the washing machine. Those I have observed are very simple, consisting of a kind of stone tub, into which a stream of water is made to flow constantly, so as to carry off all the lighter matter, which is kept stirred up by an upright studded with pegs, that revolves in the center, while the amalgamated metals sink to the bottom. Most of the quicksilver is then pressed out, and the silver submitted to a burning process, by which the remaining portion of mercury is expelled.

 

Josiah Gregg

 

I believe that He was made man, joining the human nature with the divine in one person; being conceived by the singular operation of the Holy Ghost, and born of the blessed Virgin Mary, who, as well after as before she brought Him forth, continued a pure and unspotted virgin.

 

John Wesley

 

Each green leaf or each needle is in effect a remarkably well-regulated metal factory. Its operation can be demonstrated experimentally. With the falling of the leaves or needles this supply of metals is scattered by the wind, and the more undergrowth there is, the greater is the dispersion of organic metal salts, which during the winter are pressed down hard by the snow.

 

Viktor Schauberger

 

The city closes in on him now, and in his strange perspective it becomes the antithesis of what he believes. The citadel not of Quality, the citadel of form and substance. Substance in the form of steel sheets and girders, substance in the form of concrete piers and roads, in the form of brick, of asphalt, of auto parts, old radios, and rails, dead carcasses of animals that once grazed the prairies. Form and substance without Quality. That is the soul of this place. Blind, huge, sinister and inhuman: seen by the light of fire flaring upward in the night from the blast furnaces in the south, through heavy coal smoke deeper and denser into the neon of BEER and PIZZA and LAUNDROMAT signs and unknown and meaningless signs along meaningless straight streets going off into other straight streets forever.
If it was all bricks and concrete, pure forms of substance, clearly and openly, he might survive. It is the little, pathetic attempts at Quality that kill.

 

Robert M. Pirsig

 

The picture-story involves a joint operation of the brain, the eye and the heart. The objective of this joint operation is to depict the content of some event which is in the process of unfolding, and to communicate impressions. Sometimes a single event can be so rich in itself and its facets that it is necessary to move all around it in your search for the solution to the problems it poses — for the world is movement, and you cannot be stationary in your attitude toward something that is moving. Sometimes you light upon the picture in seconds; it might also require hours or days. But there is no standard plan, no pattern from which to work.

 

Henri Cartier-Bresson