was of the most persuasive character, and his military operations invariably successful. But when he became emperor his nature seemed to have undergone a perfect revolution. All martial enterprizes were abandoned, and the nation groaned beneath his relentless and persevering tyranny. He put to death his own sons, and therefore it was not to be expected that he should spare others. The patricians threatened, and the people cursed him. Formerly, he had been noted for temperance; but now he showed himself the most intemperate of a dissolute age; insomuch that he obtained the surname of Bacchus. (42) It happened that a certain artificer fabricated a plate of glass, which being exhibited to the emperor, he attempted, but ineffectually, to break it. It bent, however, beneath his efforts, and the artificer, applying a hammer and working upon the glass as upon copper, presently restored it to its level. Tiberius inquired by what art this was effected; and the other replied, that it was a secret not to be disclosed. Immediately he was ordered to the block, the emperor alleging, that if such an art should be
