Of this lamp (which the miners call 'a Davy,') the inventor, with his usual philanthropic spirit, often said, 'I value it more than ANYTHING I EVER DID.' The Emperor of Russia sent him a magnificent silver-gilt vase, the cover of which was surmounted by a figure of the God of Fire weeping over his extinguished torch, and the present was accompanied by an autograph letter. Early in the following year, his services to Science and to Humanity were recognised, somewhat tardily, by his having a baronetcy conferred upon him by the English Sovereign.[112] In the summer of 1818 he contemplated a second visit, with Lady Davy, to the Continent. The programme included Flanders, Austria, Rome, and Naples,[113] to the two last of which places he went commissioned by the Prince Regent to investigate at Pompeii the bases of the colours employed by the ancients in their frescoes; and to discover, if possible, some chemical process of unrolling the papyric MSS. affected by the fire at Herculaneum: in this, however, he was unsuccessful; and his want of success--a thing so unusual with him--afforded him infinite chagrin. Most of the summer and part of the autumn of 1819 were spent in luxurious repose at the baths of Lucca; but the winter found him again at Rome, all the while making notes and storing up thoughts for his delightful book, 'The Consolations of Travel.' In the summer of 1820 he returned, by way of the south of France, to his house in Grosvenor Street, and deeply interested himself in an inquiry into the 'Connexion between Magnetism and Electricity,' the result of which he communicated to the Royal Society on the 12th November. Again he visited Scotland; and Lockhart gives a graphic account of the party at Abbotsford, in the autumn of this year, as they started on a sporting expedition, in which, after sketching the portraits of some members of it, Scott's biographer goes on to say: 'But the most picturesque figure was the illustrious inventor of the safety-lamp. He had come for his favourite sport of angling, and had been practising it successfully with Rose, his travelling companion, for two or three days preceding this; but he had not prepared for coursing fields, or had left Charlie Purdie's troop for Sir Walter's on a sudden thought; and his fisherman's costume--a brown hat with flexible brim, surrounded with line upon line, and innumerable fly-hooks; jack-boots worthy of a Dutch smuggler, and a fustian surtout dabbled with the blood of salmon--made a fine contrast with the smart jackets, white cord breeches, and well-polished jockey-boots of the less distinguished cavaliers about him.' After a merry lunch at Newark Castle they all moved on towards Blackandro, and, Lockhart continues: