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The erratic blocks were supposed in their downward passage to have smoothed and striated the rock surfaces over which they were forced along.
As in England, this bird constructs under the eaves of roofs its nest of mud lined with feathers. Not unlike the common swallow, but readily distinguishable from it in that the lower back is chestnut red, is Hirundo nepalensis Hodgson's striated swallow, or the red-rumped swallow, as Jerdon well called it. This bird also breeds under eaves.
Back a few miles from the front, the glacier is now probably but little more than a thousand feet deep; but when we examine the records on the walls, the rounded, grooved, striated, and polished features so surely glacial, we learn that in the earlier days of the ice age they were all over-swept, and that this glacier has flowed at a height of from three to four thousand feet above its present level, when it was at least a mile deep.
The striated is represented by the skeletal muscles, and the unstriated by the thin muscular layers that form part of the wall of the stomach, intestines, bladder and other hollow organs. RHEUMATISM. This is an inflammation of the tissues that form the locomotory apparatus. The effect of cold on the muscles and tendons is an important factor in its production.
Fragments of rock have travelled for great distances, especially from north to south: the surface of the subjacent rock is smoothed, striated, and fluted; unstratified mud or TILL containing boulders is associated with strata of loam, sand, and clay, usually devoid of fossils.
But it is the seeds which are curious, and which give to the tree the odd name of "volador," or "flier." These seeds have each a pair of membranaceous and striated wings, which, when the seeds fall, are turned to meet the air at an angle of 45 degrees; and thus a rotatory motion is produced, and the falling seeds turn round and round like little fly-wheels.
Another convulsion then burst open the rocks along the old line of fracture, and the first set of deposits were cracked and often shattered, so that the new rent was filled, not only with angular fragments of the adjoining rocks, but with pieces of the older vein-stones. Polished and striated surfaces on the sides or in the contents of the vein also attest the reality of these movements.
These erratic blocks of foreign origin are often polished and striated, having undergone what is called glaciation, of which more will be said by and by. Blocks of the same mineral character, embedded at Biddenham in the gravel Number 3, have lost all signs of this striation by the friction to which they were subjected in the old river bed.
They act in the economy of nature as vast reservoirs of water and of elastic fluids. The gypseous caverns glitter with crystallized selenites. Vitreous crystallized plates of brown and yellow stand out on a striated ground composed of layers of alabaster and fetid limestone. The calcareous grottoes have a more uniform tint.
At eveningtide there had spread over the jagged western outlines of the Moor an orange-tawny sunset, whereon the solid masses of the hills burnt into hazy gold, all fairy-bright, unreal, unsubstantial as a cloud-island above them, whose solitary and striated shore shone purple through molten fire.
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