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One series of these terraced pools and cascades was of the purest white tint, the other of the most delicate pink, the waters topping over the edge of each pool and falling in a miniature cascade to the one next below, thus keeping the edges built up by a continual renewal of the silicious incrustation.
The original outline of the fronds may often be traced, either to a minute particle of shell fixed in a crevice of the rock, or to several cemented together; these first become deeply corroded, by the dissolving power of the waves, into sharp ridges, and then are coated with successive layers of the glossy, grey, calcareous incrustation.
Ten years ago this burner, with a regulator at the meter, was generally thought to be the most economical contrivance possible. It is now little used. Yet either the batwing or the fishtail tip can be used in any common burner except the argand. The old brass and iron tips are mostly superseded by those of "lava," being liable to an early change of the orifice from incrustation and rust.
Moreover in sea-shells, it is known that the parts habitually covered and shaded by the mantle of the animal, are of a paler colour than those fully exposed to the light, just as is the case with this incrustation.
Dirt, one would fancy, is plenty enough all over the world, being the symbolic accompaniment of the foul incrustation which began to settle over and bedim all earthly things as soon as Eve had bitten the apple; ever since which hapless epoch, her daughters have chiefly been engaged in a desperate and unavailing struggle to get rid of it.
That he could not altogether "take to" Lashmar was nothing to the point. How often had he rebuked himself for his incrustation of prejudices, social and personal, which interfered between him and the living, progressing world! Fie upon his finical spirit, which dwelt so vulgarly on a man's trivial defects!
After rain the salts disappear, and every puddle of water becomes highly saline; as the surface dries, the capillary action draws the moisture up pieces of broken earth, dead sticks, and tufts of grass, where the salt effloresces. The incrustation, where thickest, does not exceed a quarter of an inch. Part.
What community of faculty can there be between the brightly-coloured lichen, which so nearly resembles a mere mineral incrustation of the bare rock on which it grows, and the painter, to whom it is instinct with beauty, or the botanist, whom it feeds with knowledge?
We secure the oysters and insert small objects within the shells, generally a seed-pearl of insignificant size, leaving it to be worked upon by the living fish; when enough time for the incrustation has elapsed we find our pearls grown to a remarkable size, of rarest beauty and value. These processes are not unknown to man, but men are so clumsy that they seldom succeed in perfecting them."
"The cliffs and masses of rock along the shore were whitened by an incrustation of salt where the waves dashed up against them; and the evaporating water, which had been left in holes and hollows on the surface of the rocks, was covered with a crust of salt about one eighth of an inch in thickness.
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