SYRIAN LOOKING GLASSES.
The Damascus blades are the handsomest and best of all Syria; and it is curious to observe their manner of burnishing them. This operation is performed before tempering, and they have for this purpose a small piece of wood, in which is fixed an iron, which they run up and down the blade, and thus clear off all inequalities, as a plane does to wood: they then temper and polish it. This polish is so highly finished, that when any one wants to arrange his turban, he uses his sword for a looking-glass. As to its temper it is perfect, and I have nowhere seen swords that cut so excellently. There are made at Damascus and in the adjoining country mirrors of steel, that magnify objects like burning-glasses. I have seen some that, when exposed to the sun, have reflected the heat so strongly as to set fire to a plant fifteen or sixteen feet distant!—Broquiere's Travels to Jerusalem in 1432.