The most celebrated diamond of our times we, however, suspect to be that called "The Mountain of Light," (_Koh-i-noor_,) which belonged to Runjeet Sing, and now belongs to Queen Victoria. It was once valued at £3,000,000, is very brilliant, and without a flaw of any kind. Runjeet's string of pearls was, it is thought, if possible, even handsomer than the diamond; they were about three hundred in number, literally the size of small marbles, all picked pearls, and round, and perfect both in shape and colour. Two hours before he died, he sent for all his jewels, and gave the above diamond, said to be the largest in the world, to a Hindoo temple; his celebrated string of pearls to another; and his favourite fine horses, with all their jewelled trappings, worth 300,000l., to a third. "The Nizam's Diamond" is another wonderful gem: it was first seen in the hands of a native child in India, who was playing with it, ignorant of its value; and a considerable sum being offered for it, led to the discovery of its being a real diamond. In its rough state, it weighs 277 carats; and as the rough stones are usually taken to give but half of their weight when cut or polished, it would allow 138 carats. ------------------ DR. DEE, THE NECROMANCER. Dr. John Dee was a man who made a conspicuous figure in the 16th century. He was born in London in 1527: he was an eminent scholar and an indefatigable mathematician; when at Cambridge, he was mostly occupied eighteen hours out of the twenty-four in study. While here he superintended the exhibition of a Greek play of Aristophanes, among the machinery of which he introduced an artificial scarabæus, or beetle, which flew up to the palace of Jupiter with a man on his back, and a basket of provisions. The astonished spectators ascribed this feat to the arts of the magician; and Dee, annoyed by these suspicions, found it convenient to withdraw to the Continent.