Page:Decline and Fall of the Roman Empire vol 4 (1897).djvu/265

Rh of polished brass, with many smaller and moveable polygons to receive and reflect the rays of the meridian sun; and a consuming flame was darted to the distance, perhaps, of two hundred feet. The truth of these two extraordinary facts is invalidated by the silence of the most authentic historians; and the use of burning-glasses was never adopted in the attack or defence of places. Yet the admirable experiments of a French philosopher have demonstrated the possibility of such a mirror; and, since it is possible, I am more disposed to attribute the art to the greatest mathematicians of antiquity than to give the merit of the fiction to the idle fancy of a monk or a sophist. According to another story, Proclus applied sulphur to the destruction of the Gothic fleet; in a modern imagination, the name of sulphur is instantly connected with the suspicion of gunpowder, and that suspicion is propagated by the secret arts of his disciple Anthemius. A citizen of Tralles in Asia had five sons, who were all distinguished in their respective professions by merit and success. Olympius excelled in the knowledge and practice of the Roman jurisprudence. Dioscorus and Alexander became learned physicians; but the skill of the former was exercised for the benefit of his fellow-citizens, while his more ambitious brother acquired wealth and reputation at Rome. The fame of Metrodorus the grammarian, and of Anthemius the mathematician and architect, reached the ears of the emperor Justinian, who invited them to Constantinople; and, while the one instructed the rising generation in the schools of eloquence, the other filled the capital and provinces with more lasting