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Curiosities--Basaltic and Rocky

having given way and tumbled down, they have been thus buried beneath the ruins, and there remain. “A considerable way from the repository of the ashes and slags, and to the east of the Great Causeway, is another curicus appearance. Here, in the pure basalt, seventy or eighty feet from the top of the cliff, is a horizontal bed of wood coal, eight feet thick. The coal to all appearance rests immediately on the basalt below, and the ends of perpendicular basaltic columns are seen distinctly to rest on it above. The basalt is not in the least changed by the contact of the coal, nor the coal by that of the basalt. The coal is very beautiful and distinct, and in one place is seen a coalified tree, (if I may use the word,) ten or twelve inches in diameter, running directly in below the basalt. "Within sight of this spot, and about three hundred yards to the east of it, are the beautifully conspicuous basaltic pillars, forty-five feet long, and vertical, with the longest ones in the middle, and others gradually shortening towards each side, like the columns of an organ. From this appearance they have received the appropriate name of The Organ. "At the bottom of this cliff, by examining and breaking the loose columnar pieces of the rock that have fallen down, we found many fine specimens of calcedony, zeolite, and semiopal. These occur in cavities in the basalt. Sometimes the cavity is not completely filled with the calcedony or opal; and when that is the case, the empty space is observed to be always the upper part of the cavity, while the rock is in situ. Moreover, the surface of the calcedony or opal, next to the empty space, is always found to be flat and horizontal, which would shew that the substance must have been filtered into its situation in a fluid state, and afterwards consolidated." STONEHENGE, -a celebrated monument of antiquity, stands in the middle of a flat area, near the summit of a hill six miles from Salisbury. It is inclosed by a circular double bank and ditch near thirty feet broad, after crossing which, we ascend thirty yards before we reach the work. The whole fabric consisted of two circles and two ovals. The outer circle is about one hundred and eight feet diameter, consisting, when entire, of sixty stones, thirty uprights, and thirty imposts, of which remain only twenty-four uprights, seventeen standing, and seven down, three and a half feet asunder; and eight imposts. Eleven uprights have their five imposts on them by the grand entrance. These stones are from thirteen to twenty feet high. The lesser circle is somewhat more than eight feet from the inside of the outer one, and consisted of forty lesser stones (the highest six feet,) of which only nineteen remain, and only eleven standing: the walk between these two circles is three STONEHENGE. hundred feet in circumference. The adytum, or cell, is an oval formed of ten stones, (from sixteen to twenty-two feet high,) in pairs, with imposts, which Dr. Stukeley calls trilithons, and above thirty feet high, rising in height as they go round, and each pair separate, and not connected as the outer pair; the highest eight feet. Within these are nineteen smaller single stones, of which only six are standing. Three of the five trilithons at the west end fell flat westward, levelling also in their descent, a stone of the second circle that stood in the line of their precipitation, on the 3d of January, 1797. At the upper end of the adytum is the altar, a large slab of blue coarse marble, twenty inches thick, sixteen feet long, and four broad; pressed down by the weight of the vast stones that have fallen upon it. The whole number of stones, uprights and altar, is exactly one hundred and forty. The stones are far from being artificial, but were most probably brought from those called the Grey Weathers, on Marlborough Downs, fifteen or sixteen miles off; and if tried with a tool, they appear of the same hardness, grain, and colour, generally reddish. The heads of oxen, deer, and other beasts, have been found on digging in and about Stonehenge; and human bones in the circumjacent barrows. There are three entrances from the plain to this structure, the most considerable of which is from the north-east, and at each of them were raised, on the outside of the trench, two huge stones, with two smaller within, parallel to them.