Through the suave, warm radiance of that afternoon of Spring in England a gentleman of modest and commonly amiable deportment bore a rueful countenance down Piccadilly and into Halfmoon street, where presently he introduced it to one whom he found awaiting him in his lodgings, much at ease in his easiest chair, making free with his whiskey and tobacco, and reading a slender brown volume selected from his shelves. This degage person was patently an Englishman, though there were traces of Oriental ancestry in his cast. The other, he of the doleful habit, was as unmistakably of Gallic pattern,...