It is of red Syenite; but, from time and weather, it is almost the colour of limestone. It has an original flaw up a third of its height, for which the Egyptian masons provided a remedy by wedges, and the summit is slightly broken. The height of the monolith is seventy-two feet three inches, which would look insignificant, fixed as it is in the centre of lofty buildings, but for its being raised on a plinth of granite, and that again raised on a pedestal of immense blocks of granite--the height of the plinth and the pedestal together being twenty-seven feet, making the entire height nearly one hundred. The weight of the monolith is five hundred thousand pounds; the weight of the pedestal is half that amount, and the weight of the blocks probably makes the whole amount to nine hundred thousand, which is the weight of the obelisk at Rome. It was erected in 1836, by drawing it up an inclined plane of masonry, and then raising it by cables and capstans to the perpendicular. The operation was tedious, difficult, and expensive; but it was worth the labour; and the monolith now forms a remarkable monument of the zeal of the king, and of the liberality of his government. There is, I understand, an obelisk remaining in Egypt, which was given by the Turkish government to the British army, on the expulsion of the French from Egypt, but which has been unclaimed, from the difficulty of carrying it to England. That difficulty, it must be acknowledged, is considerable. In transporting and erecting the obelisk of Luxor six years were employed. I have not heard the expense, but it must have been large. A vessel was especially constructed at Toulon, for its conveyance down the Nile. A long road was to be made from the Nile to the Temple. Then the obelisk required to be protected from the accidents of carriage, which was done by enclosing it in a wooden case. It was then drawn by manual force to the river--and this employed three months. Then came the trouble of embarking it, for which the vessel had to be nearly sawn through; then came the crossing of the bar at Rosetta--a most difficult operation at the season of the year; then the voyage down the Mediterranean, the vessel being towed by a steamer; then the landing at Cherbourg, in 1833; and, lastly, the passage up the Seine, which occupied nearly four months, reaching Paris in December; thenceforth its finishing and erection, which was completed only in three years after.