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Updated: May 31, 2025
Low hills of sand, covered with brush, stretched back from the shore. On the eastern horizon, leagues distant, blue masses of mountain striated with mirages swam in the scorching air. The sand was like fire to the touch. Far out in the bay the schooner hung motionless under bare sticks, resting apparently upon her inverted shadow only.
The ancient glacier of the first of these, the Aar, has traversed the lakes of Brienz and Thun and has borne angular, polished, and striated blocks of limestone and other rocks as far as Berne and somewhat below that city.
In Norway and Sweden, instead of such a subsiding movement, the land is slowly rising; but we have only to suppose that formerly, when it was covered like Greenland with continental ice, it sank at the rate of several feet in a century, and we shall be able to explain why marine deposits are found above the level of the sea, and why these generally overlie polished and striated surfaces of rock.
This is another common bird. Like all its clan it goes about in flocks. Its wings are chestnut and blue. Grammatophila striata. The striated laughing-thrush. A common bird, but as it keeps to dense foliage it is heard more often than seen. Of its curious cries Jerdon likens one to the clucking of a hen which has just laid an egg. The tail is chestnut.
Besides the proofs of mechanical action already explained, the opposite walls of veins are often beautifully polished, as if glazed, and are not unfrequently striated or scored with parallel furrows and ridges, such as would be produced by the continued rubbing together of surfaces of unequal hardness.
The rest of the plumage is umber brown, but every feather has a white streak along the middle. These white streaks give the bird the striated appearance from which it obtains its name. Pomatorhinus erythrogenys. The rusty-cheeked scimitar-babbler. Pomatorhinus schisticeps. The slaty-headed scimitar-babbler. This is easily distinguished from the foregoing species by its conspicuous white eyebrow.
The deposit c in that section consists of sand, mud, gravel, and stones, for the most part unstratified, resembling the till or boulder clay of Europe. It varies in thickness from 10 to 50 feet, being of greater depth in the valleys. The uppermost portion is occasionally, though rarely, stratified. Some few of the imbedded stones have flattened, polished, striated, and furrowed sides.
The Colors of Striated Surfaces Young similarly examined the colors that are produced by scratches on a smooth surface, in particular testing the light from "Mr. Coventry's exquisite micrometers," which consist of lines scratched on glass at measured intervals. These microscopic tests brought the same results as the other experiments.
Their height, as we approached them, seemed to me in some places to be greater than he had stated running up in parts to at least a thousand feet and they were curiously striated, in a manner which is, I believe, characteristic of basaltic upheavals. Something of the sort is to be seen in Salisbury Crags at Edinburgh.
*Purpose of Striated Muscles.*—The striated muscles, by their attachments to the bones, supply motion to all the mechanical devices, or machines, located in the skeleton. Through them the body is moved from place to place and all the external organs are supplied with such motion as they require.
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