Material analogy with imagination

This operation of mind, so far as I can see, is absolutely inexplicable, but there is something like it in chemistry. paintings for sale
"The action of sulphuric acid on metallic zinc affords an instance of what was once called disposing affinity. Zinc decomposes pure water at common temperatures with extreme slowness; but as soon as sulphuric acid is added, decomposition of the water takes place rapidly, though the acid merely unites with oxide of zinc. The former explanation was, that the affinity of the acid for oxide of zinc disposed the metal to unite with oxygen, and thus enabled it to decompose water; that is,oil paintings of italy, the oxide of zinc was supposed to produce an effect previous to its existence. The obscurity of this explanation arises from regarding changes as consecutive, which are in reality simultaneous. There is no succession in the process, the oxide of zinc is not formed previously to its combination with the acid, but at the same instant. There is,oil painting reproductions, as it were, but one chemical change, which consists in the combination at one and the same moment of zinc with oxygen, and of oxide of zinc with the acid; and this change occurs because these two affinities, acting together, overcome the attraction of oxygen and hydrogen for one another."
Now, if the imaginative artist will permit us, with all deference, to represent his combining intelligence under the figure of sulphuric acid; and if we suppose the fragment of zinc to be embarrassed among infinitely numerous fragments of diverse metals, and the oxygen dispersed and mingled among gases countless and indistinguishable, we shall have an excellent type in material things of the action of the imagination on the immaterial. Both actions are, I think, inexplicable, for however simultaneous the chemical changes may be, yet the causing power is the affinity of the acid for what has no existence. It is neither to be explained how that affinity operates on atoms uncombined, nor how the artist's desire for an unconceived whole prompts him to the selection of necessary divisions. oil painting reproductions for sale