The Egyptian obelisk has another peculiarity; it is rarely uniform in breadth on all its four sides; the opposites agree, but the neighbouring sides differ. This difference is clearly not intentional, but a possible consequence of the method of splitting so gigantic a shaft from its mother-rock. The British obelisk, for example, measures 7 feet 5 inches in breadth at its base on one side, and close upon 8 feet (7 ft. 10½ in.) on the adjoining side—a difference of five inches and a-half; while similar measurements of the Alexandrian obelisk give 7 feet 9¾ inches, and 8 feet 2¼ inches—a difference of only two inches and a-half. The proper proportions of the shaft of an obelisk, exclusive of its pyramidion, are said to be ten times the breadth of the base. Now if we apply this rule to the British obelisk, its height should be nearly eighty feet, whereas its extremest height, from the base to the point, is _sixty-eight feet five inches and a-half_. From its base of 7 feet 5, or 7 feet 10½ inches, it tapers gradually upwards to a breadth of 4 feet 10 inches, or 5 feet 1 inch; and then contracts into a pointed pyramid of 7 feet 6 inches high. The Alexandrian obelisk is hardly so tall as the British obelisk, and measures 67 feet 2 inches. But when the British obelisk shall have been raised on its pedestal of ten feet square, and mounted on plinths, the monument will then have an altitude of over eighty feet. Comparing it with the Paris obelisk, the latter is seventy-six feet and a-half in height, consequently nearly eight feet higher than the British obelisk: whereas one of Pharaoh’s Needles, set up before the Lateran Church in Rome, was originally more than 108 feet high; but having lost part of its base, at present measures 105 feet 7 inches. [Illustration: The Paris obelisk, brought from Luxor, and now standing in the Place de la Concorde. A work of Rameses II.] The rose-coloured granite of Syené, the so-called “Syenite,” has acquired a world-wide reputation for its beauty of colour, the lustre of its polish, and its hardness of texture. In the dry climate of Upper Egypt, where a rainy day occurs only four or five times in the year, this granite may be said to be absolutely indestructible; and therefore it is that the Egyptian sculptures and obelisks, more than four thousand years old, come down to us almost as fresh as if they had just issued from the workman’s hand. The engraving of the hieroglyphs is often several inches in depth, its hollows carefully polished, and the work comparable to the delicate carving of a gem.