ing 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.
"To a man so eager as he was in the pursuit of knowledge, this appeared to be a most singular phaenomenon, and one that deserved to be viewed more closely; accordingly he gave orders for a light Liburnian vessel to be got ready, and left it at my option to accompany him. To this however I made answer, that I should prefer continuing my studies; and as it so happened, he himself had just given me something to write. Taking his tablets with him, he left the house. The sailors stationed at Retina, alarmed at the imminence of the danger—for the village lay at the foot of the mountain, and the sole escape was by sea—sent to entreat his assistance in rescuing them from this frightful peril. Upon this he instantly changed his plans, and what he had already begun from a desire for knowledge, he determined to carry out as a matter of duty. He had the gallies put to sea at once, and went on board himself, with the intention of rendering assistance, not only to Retina, but to many other places as well; for the whole of this charming coast was thickly populated. Accordingly he made all possible haste towards the spot, from which others were flying, and steered straight onwards into the very midst of the danger: so far indeed was he from every sensation of fear, that he remarked and had noted down every movement and every change that was to be observed in the appearance of this ominous eruption.
