The months of May and June were spent by the small party mostly in Italy--first in Rome, then Naples, and afterwards travelling from place to place. At Naples a stay of some days was made, and Faraday's journal gives us an interesting account of two visits to Mount Vesuvius. On the second day the party, largely increased by other visitors, had a picnic on the Mount. "Cloths were laid on the smoking lava, and bread, chickens, turkey, cheese, wine and water, and eggs roasted on the mountain, brought forth, and a species of dinner taken at this place. Torches were now lighted, and the whole had a singular appearance; and the surrounding lazzaroni assisted not a little in adding to the picturesque effect of the scene. After having eaten and drunk, Old England was toasted, and 'God save the king!' and 'Rule, Britannia' sung; and two very entertaining Russian songs by a gentleman, a native of that country, the music of which was peculiar and very touching." [Illustration: NAPLES AND MOUNT VESUVIUS.] From Naples the journey is continued up north through all the magnificent scenery of Italy; the journal giving us occasionally delightful word-pictures of the landscape, and recording the young traveller's observations on various natural phenomena. Now, as we have seen, glowworms attract his attention, then waterspouts, and the magnificent spectacle presented by Vesuvius; and again his attention is occupied with the beautiful fire-flies that appeared "in innumerable quantities; at a distance they covered the side of the mountain, and near us they passed over the fields, hovered on the edge or crossed the road, often attaching themselves to the harness, and emitting their bright and harmless flashes of light in a rapid and beautiful manner." In July our party found themselves settled in Geneva, where some three months were passed very enjoyably in congenial society. Davy was the guest of the elder De la Rive, with whom he experimented in chemistry, and with whom, they both being ardent sportsmen, he went out fishing and shooting. "On these occasions," says Professor Tyndall, "Faraday charged Davy's gun, while De la Rive charged his own. Once the Genevese philosopher found himself by the side of Faraday, and in his frank and genial way entered into conversation with the young man. It was evident that a person possessing such a charm of manner and such high intelligence could be no mere servant. On inquiry De la Rive was somewhat shocked to find that the _soi-disant domestique_ was really _preparateur_ in the laboratory of the Royal Institution; and he immediately proposed that Faraday thenceforth should join the masters instead of the servants at their meals. To this Davy, probably out of weak deference to his wife, objected; but an arrangement was come to that Faraday thenceforward should have his food in his own room."