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Updated: May 25, 2025
These ravages of time, or rather of the wasting operations of the surface of the earth, however great, compared with the little changes that we find in our experience, or in the most ancient record of our histories, are little things, considering the softness and solubility of the materials, and compared with the wasting of the Alps, which we find in tracing up those same rivers to their sources in the icy valleys.
The chemist, in order to prepare a mineral for analysis, to decompose it, or to increase the solubility of its elements, proceeds in the same way as the farmer deals with his fields he spares no labour in order to reduce it to the finest powder; he separates the impalpable from the coarser parts by washing, and repeats his mechanical bruising and trituration, being assured his whole process will fail if he is inattentive to this essential and preliminary part of it.
Her presence proved somehow less irreducible to soft particles than Ralph had expected in the natural perturbation of his sense of the perfect solubility of that of his cousin; for the correspondent of the Interviewer prompted mirth in him, and he had long since decided that the crescendo of mirth should be the flower of his declining days.
For, though in the substance of gold one satisfies himself with colour and weight, yet another thinks solubility in aqua regia as necessary to be joined with that colour in his idea of gold, as any one does its fusibility; solubility in aqua regia being a quality as constantly joined with its colour and weight as fusibility or any other; others put into it ductility or fixedness, &c., as they have been taught by tradition or experience.
If we suppose selenium to be merely modified sulphur, and phosphorus modified arsenic, how does it happen, we must inquire, that sulphuric acid and selenic acid, phosphoric and arsenic acid, respectively form compounds which it is impossible to distinguish by their form and solubility? Were these merely isomeric, they ought to exhibit properties quite dissimilar!
Apopholite is distinguished from calcite, as noticed under that species, and from the others by its form, difficult fusibility, and part solubility. Phrenite is characterized by its hardness, greenish color, occurrence, and action of acid. Iron pyrites is always known by its brassy metallic aspect and great hardness.
The washing should be continued until no cloudiness whatever can be detected in 3 cc. of the washings. Silver chloride is but slightly soluble in water. The solubility varies with its physical condition within small limits, and is about 0.0018 gram per liter at 18°C. for the curdy variety usually precipitated.
This great body being formed of different mixed masses, having various degrees of hardness and solubility, proper soil for plants is supplied from the gradual resolution of the solid parts; fertility in those soils arises from the mixture of different elementary substances; and stability is procured to that vegetable world, by the induration of certain bodies, those rocks and stones, which protect the softer masses of clay and soil.
But essence, even in this sense, RELATES TO A SORT, AND SUPPOSES A SPECIES. For, being that real constitution on which the properties depend, it necessarily supposes a sort of things, properties belonging only to species, and not to individuals: v. g. supposing the nominal essence of gold to be a body of such a peculiar colour and weight, with malleability and fusibility, the real essence is that constitution of the parts of matter on which these qualities and their union depend; and is also the foundation of its solubility in aqua regia and other properties, accompanying that complex idea.
There's one coming down the corridor now and locking the house. You go or I'll call!" His eyes, with their peculiar trick of solubility in his color scheme, seemed all tan. "I'll go," he said, looking slim and Southern, his imperturbability ever so slightly unfrocked "I'll go, but you're making a mistake, Hattie." Fear kept clanging in her. Fire bells of it. "Oh, but that's like you, Morton!
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