compared to the faint strains of an Aeolian harp when its strings first catch the breeze: as the sand became more violently agitated by the increased velocity of the descent, the noise more nearly resembled that produced by drawing the moistened fingers over glass. As it reached the base, the reverberations attained the loudness of distant thunder, causing the rock on which we were seated to vibrate; and our camels,--animals not easily frightened,--became so alarmed that it was with difficulty their drivers could restrain them." "The hill of _Reg-Rawan_ or the 'Moving Sand,'" says the late Sir Alexander Burnes, by whom the place was visited in the autumn of 1837, and who has recorded his visit in a brief paper, illustrated by a rude lithographic view, in the "Journal of the Asiatic Society" for 1838, "is about forty miles north of Cabul, towards Hindu-kush, and near the base of the mountains." It rises to the height of about four hundred feet, in an angle formed by the junction of two ridges of hills; and a sheet of sand, "pure as that of the sea-shore," and which slopes in an angle of forty degrees, reclines against it from base to summit. As represented in the lithograph, there projects over the steep sandy slope on each side, as in the "Mountain of the Bell," still steeper barriers of rock; and we are told by Sir Alexander, that though "the mountains here are generally composed of granite or mica, at _Reg-Rawan_ there is sandstone and lime." The situation of the sand is curious, he adds: it is seen from a great distance; and as there is none other in the neighborhood, "it might almost be imagined, from its appearance, that the hill had been cut in two, and that the sand had gushed forth as from a sand-bag." "When set in motion by a body of people who slide down it, a sound is emitted. On the first trial we distinctly heard two loud hollow sounds, such as would be given by a large drum;"--"there is an echo in the place; and the inhabitants have a belief that the sounds are only heard on Friday, when the saint of _Reg-Rawan_, who is interred hard by, permits." The phenomenon, like the resembling one in Arabia, seems to have attracted attention among the inhabitants of the country at an early period; and the notice of an eastern annalist, the Emperor Baber, who flourished late in the fifteenth century, and, like Caesar, conquered and recorded his conquests, still survives. He describes it as the _Khwaja Reg-Rawan_, "a small hill, in which there is a line of sandy ground reaching from the top to the bottom," from which there "issues in the summer season the sound of drums and nagarets." In connection with the fact that the musical sand of Eigg is composed of a disintegrated sandstone of the Oolite, it is not quite unworthy of notice that sandstone and lime enter into the composition of the hill of _Reg-Rawan_,--that the district in which the hill is situated is not a sandy one,--and that its slope of sonorous sand seems as if it had