Note 11 — THE VISION OF CAGLIOSTRO.

Those who are familiar with the classic historians, will see in this description no exaggeration whatever. Instruments for the destruction of life yet more awful and mysterious, were employed by many of the predecessors, and many of the successors of Tiberius, as well as by Tiberius himself: and modern science has shown that these devices, instead of being, as was originally conjectured, the result of black-magic, were, in reality, the effect of hydraulic, pneumatic, and mechanical contrivances. Even the most marvellous feats of the Egyptian sorcerers have been latterly explained by the revelations of natural philosophy, and a multitude of these explanations may be found by the reader in the learned work "Des Sciences Occultes," &c. written by M. Eusebe Salverte, and published in Paris as recently as 1843. In that remarkable volume, M. Salverte proves that natural phenomena are more startling than necromantic tricks, and that, in the words of Roger Bacon, "non igitur oportet nos magicis illusionibus uti, cum potestas philosophica doceat operari quod sufficit." That Tiberius was capable of atrocities yet more terrific, and that murders of the most inhuman kind were the consequence of almost every one of his diabolical whims, those acquainted with the picturesque narrative of Suetonius already know. They will remember not only how he caused his nephew Germanicus to be poisoned by the governor of Syria, but how he ordered a fisherman to be torn in pieces by the claws of a crab, simply because he met him, in one of his suspicious moods, when strolling in a sequestered garden of Capreæ.—Sue. Tib. c. lx.