These were glorious days in the history of Old England, the most heroic since the reign of Good Queen Bess. When the provincial printer arrived in London, the King and the politicians had already been forced, through multiplied reverses in every part of the world, to confer power upon William Pitt, a disagreeable man indeed, but still a great genius and War Lord, who soon turned defeat into victory. It was the privilege of Franklin, here in the capital of the Empire, to share the exaltation engendered by those successive conquests that gave India and America to the little island kingdom, and made Englishmen, in Horace Walpole's phrase, "heirs apparent of the Romans." No Briton rejoiced more sincerely than this provincial American in the extension of the Empire. He labored with good will and good humor, and doubtless with good effect, to remove popular prejudice against his countrymen; and he wrote a masterly pamphlet to prove the wisdom of retaining Canada rather than Guadaloupe at the close of the war, confidently assuring his readers that the colonies would never, even when once the French danger was removed, "unite against their own nation, which protects and encourages them, with which they have so many connections and ties of blood, interest, and affection, and which 'tis well known they all love much more than they love one another." Franklin, at least, loved Old England, and it might well be maintained that these were the happiest years of his life. He was mentally so cosmopolitan, so much at ease in the world, that here in London he readily found himself at home indeed. The business of his particular mission, strictly attended to, occupied no great part of his time. He devoted long days to his beloved scientific experiments, and carried on a voluminous correspondence with David Hume and Lord Kames, and with many other men of note in England, France, and Italy. He made journeys, to Holland, to Cambridge, to ancestral places and the homes of surviving relatives; but mostly, one may imagine, he gave himself to a steady flow of that "agreeable and instructive conversation" of which he was so much the master and the devotee. He was more famous than he knew, and the reception that everywhere awaited him was flattering, and as agreeable to his unwarped and emancipated mind as it was flattering. "The regard and friendship I meet with," he confesses, "and the conversation of ingenious men, give me no small pleasure"; and at Cambridge, "my vanity was not a little gratified by the particular regard shown me by the Chancellor and Vice-Chancellor of the University, and the Heads of the Colleges." As the years passed, the sense of being at ease among friends grew stronger; the serene and placid letters to "Dear Debby" became rather less frequent; the desire to return to America was much attenuated.