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Updated: June 5, 2025
Concretion in existence, on the contrary, yields essentially detached and empirical unities, foreign to mind in spite of their order, and unintelligible in spite of their clearness. Reason fails to assimilate in them precisely that which makes them real, namely, their presence here and now, in this order and number.
It is therefore easy to compare other concretions, which may have some superficial resemblance to these stalactical bodies, in order to see if they have proceeded upon the same principle of concretion from a dissolved state, or by water depositing its dissolved substance in a similar manner. There are two different mineral substances which give appearances of this sort.
Not only are mineral philosophers so inconsiderate, in forming geological theories upon a mere supposition or false analogy, they have even proceeded, upon that erroneous theory, to form a geological supposition for explaining the appearances of strata and other stony masses in employing a particular physical operation, which is, that of crystallization . Now crystallization may be considered as a species of elective concretion, by which every particular substance, in passing from a fluid to a solid state, may assume a certain peculiar external shape and internal arrangement of its parts, by which it is often distinguished.
The induration of mortar arises from the solution of a stony substance, and the subsequent concretion of that dissolved matter, operations purely chemical. Now, if this philosopher, in his Theory of Petrifaction, means only to explain a chemical operation upon mechanical principles, why have recourse, for an example in this subject, to mineral bodies, the origin of which is questioned?
Language vitiates the experience it expresses, but thereby makes the burden of one moment relevant to that of another. The two experiences, identified roughly with the same concretion in discourse, are pronounced similar or comparable in character.
Each of these states of Venice constitutes a natural object, a concretion in existence, and is again analysable into a mass of fused but recognisable qualities light, motion, beauty each of which was an original concretion in discourse, a primordial term in experience.
The concretion of calcareous matter upon the surface of the earth is perhaps the only example upon which their theory is founded; and yet nothing can be more against it than the general history of this transaction. Calcareous matter, the great vinculum of many mineral bodies, is in a perpetual state of dissolution and decay, in every place where the influences of air and water may pervade.
The marble crags are overspread with a concretion, which makes them look as gray as granite, except where the continual flow of water keeps them of a snowy whiteness. If they were so white all over, it would be a splendid show.
The "eagle-stone" is also a concretion to which magical properties were ascribed. I have seen a specimen, but do not know its history and origin. A celebrated "stone" of medicinal reputation in the East is the "goa-stone."
The changing and destroying operations of the surface exposed to the sun and influences of the atmosphere, must correspond to those by which land is composed at the bottom of the sea; and the consolidating operations of the mineral region must correspond to those appearances which in the rocks, the veins, and solid stones, give such evident, such universal testimony of the power of fire, in bringing bodies into fusion, or introducing fluidity, the necessary prelude to solidity and concretion.
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