Sunset in these regions is a magnificent spectacle. The play of colours in the heavens is quite indescribable. When the moon rises, the same thing occurs. Opposite the orb, a huge pile of vapour rises in shadowy forms, on which the light is thrown, producing the most wonderful effects. In these chromatic displays, red is the colour that predominates. Towards midnight, the wind begins to blow from the east, at first gently, but icy cold, for it comes from the regions of perpetual frost and snow. The radiation of heat from such an extensive and almost glowing surface is naturally very great and rapid, and after midnight it begins to freeze. An hour before sunrise, all stagnant water is frozen over; and the thermometer falls sometimes to 28 degrees Fahrenheit—on an average it is at 32 degrees—to rise again at noon to 90 degrees.
THINGS TALKED OF IN LONDON.
October 1852.
The death of the great Duke has for a time kept other subjects of conversation in abeyance; but by slow degrees the old hero slides into the past, and the tongues and pens of thousands are busily recalling the words, works, and exploits by which he won for himself 'imperishable renown.' His life presents itself to us in different aspects, wherein the lowliest as well as the loftiest may find something exemplary; and all may learn a lesson in that virtue of virtues—persevering straightforwardness. By and by, we shall have a magnificent funeral; and then, as new events follow, we shall find whether new men are to come capable of meeting them; whether there are to be heroes after Agamemnon as well as before.
The remains of the Great Exhibition building are fast disappearing from Hyde Park, under the busy hands of the troops of workmen engaged in the business of taking down and removal. Heavily-laden wagons are continually departing from each entrance, and every hour the prodigious mass of materials is diminished. The spectacle is a striking one in many respects, and would be a melancholy one were it not for the certainty of restoration. Already the grass is beginning to grow on the ground, worn bare by millions of feet; and before many months are over, the greensward will again cover the site of the world's Temple of Industry.
Among the objects of most interest to be comprised in the new Palace, are galleries of Classic and Mediæval Art, a Nineveh and Egyptian Court, Etruscan Restorations, Hall of the Alhambra, Court of Inventions, besides complete illustrations of the races of Man, to be arranged by Dr Latham, which will afford valuable aid to the student of ethnology; and of natural history and geology, all to be superintended by able professors. Seeing that there is talk of enlarging the British Museum, which is not half large enough for its purpose, might not some of its long-hidden contents be transferred, under proper regulations, to the Palace at Sydenham?
The present year has been as remarkable for storms as the last was for fine weather, and in parts of the world widely separated—the continent of Europe and the United States of America, as well as our own country. Meteorologists say, that the frequent atmospheric disturbances will furnish us with valuable facts for theoretical and practical use. In many places, the storms have been followed by destructive floods, particularly in France, the effects of which, it is said, are greatly aggravated by the spirit of modern improvement, leading to the cutting down of trees and forests; so that the more the land is cleared, the fiercer become the floods. It would be interesting to test this fact by what takes place under similar circumstances in America, where forest is in excess. The subject has been brought before the Geological Society by Mr Prestwich, as regards the Holmfirth flood, with a view to collect data as to the power of moving water, the height of the flood, the time in which the water ran off, together with exact measurements of the fall of the ground, and the amount of denudation. All these are questions of great scientific value in geology, because arguing from the effects produced by so small a body of water comparatively, we may arrive at satisfactory conclusions concerning the great floods of other ages. In the instance here referred to, from 40,000 to 50,000 tons were carried from the dam by the sudden rush, the greater part of which was deposited within the first 300 feet. Lower down, from one to two feet of deposit was laid over the meadows; rocks, weighing from five to twenty tons, were transported to a considerable distance; and at seven miles from the outbreak, near Huddersfield, a stratum of sand was laid over the fields. The mention of these facts may be of service to those who have had opportunities for observation elsewhere.
The Society have also had their attention called to disturbances of another sort—earthquakes; of which not a few have occurred of late in many parts of the world, our own island among them. The shocks appear to have been most severely felt in the south-west—Cornwall, for instance, and the neighbourhood of Bristol, where they extended over an area of more than thirty miles. The effects have now been accurately described: one of the shocks lasted two seconds; the other, from ten to twelve seconds, accompanied by a rumbling noise. The line of disturbance was from north to south, striking the Mendips, and traversing parts of the shires of Somerset and Gloucester. 'The chief focus of oscillation was at Cheddar, where the hill is said to have waved to and fro during several seconds; and in the alluvial flat or marsh below Cheddar, some houses had the plaster of the ceilings cracked; while in others, the clocks struck, doors slammed, bells rung, &c.' With such commotions taking place in the solid earth, geologists will not fail of sources of interest in their favourite study. There is yet another geological fact worth mentioning—the finding of footprints in what is called Potsdam sandstone, near Montreal, in Canada. This sandstone is the 'lowest member of the lowest Silurian rocks;' and the discovery is good evidence that there were living creatures walking on the land at the very oldest periods hitherto revealed by geology—thus carrying back the appearance of organic life to a time more remote than had been supposed. Professor Owen, who has examined the slabs and casts, says, that no idea of the creature that made the tracks can be formed from any animal at present existing, for instead of the prints being in successive pairs, an odd one is found to intervene. He considers it to have had three legs on each side, and to have been neither tortoise-like nor vertebrate; and after naming it Protichnites, adds: 'I incline to adopt, as the most probable hypothesis, that the creatures which have left their tracks and impressions on the most ancient of known sea-shores, belonged to an articulate and probably crustaceous genus.' The fact is an important one in a scientific point of view, and presents a new standpoint for inquirers.