In A.D. 73 or 74, he had been appointed by Vespasian præfect of the Roman fleet at Misenum, on the western coast of Italy. It was to this elevation that he owed his romantic death, somewhat similar, it has been remarked, to that of Empedocles, who perished in the crater of Mount Ætna. The closing scene of his active life, simultaneously with the destruction of Herculaneum and Pompeii, cannot be better described than in the language employed by his nephew in an Epistle to his friend Tacitus the historian[6]:—“My uncle was at Misenum, where he was in personal command of the fleet. On the ninth[7] day before the calends of September, at about the seventh hour, 1 P.M., my mother, observing the appearance of a cloud of unusual size and shape, mentioned it to him. After reclining in the sun he had taken his cold bath; he had then again lain down and, after a slight repast, applied himself to his studies. Immediately upon hearing this, he called for his shoes, and ascended a spot from which he could more easily observe this remarkable phænomenon. The cloud was to be seen gradually rising upwards; though, from the great distance, it was uncertain from which of the mountains it arose; it was afterwards, however, ascertained to be Vesuvius. In appearance and shape it strongly resembled a tree; perhaps it was more like a pine than anything else, with a stem of enormous length reaching upwards to the heavens, and then spreading out in a number of branches in every direction. I have little doubt that either it had been carried upwards by a violent gust of wind, and that the wind dying away, it had lost its compactness, or else, that being overcome by its own weight, it had decreased in density and become extended over a large surface: at one moment it was white, at another dingy and spotted, just as it was more or less charged with earth or with ashes.