It was later in life (1845) that he made the acquaintance of Professor Tholuck of Halle; but, though both were old men, there was all the warmth and joyousness of youth in their short fellowship. Dr. Rutherfurd Russell, in whose house he met Tholuck, related that ’he seated himself on a low chair close to the learned German, and listened with an air of genuine docility to all he said, throwing in a characteristic observation now and then, always, however, in the way of encouragement, never of contradiction.... Tholuck turned to his host, and said, in German, that he had never seen so beautiful an old man.... The result of the interview was an amount of mutual confidence and esteem, as deep and sincere as it was mutual.... The day before Tholuck’s departure, Dr. Chalmers called upon him, and found him at his midday repast. He sat with him only for a few minutes and said little, but looked at him steadily, with an expression of constant interest and affection. He rose to take leave, and, instead of taking him by the hand, he threw his arms round his neck and kissed him, while "God bless you, my dear friend!" broke with apparent difficulty from his overcharged heart. After he was gone, it was noticed that a tear had gathered in the eye of him who had received the apostolic benediction and seal of brotherhood from one he loved and venerated so much. His only observation was a half-muttered, half-spoken, _Eben ein Kuss_—even a kiss.’ The visits to London were not always on controversial business. On the accession of William IV. in 1830, he formed one of a deputation from the Church of Scotland appointed to present a congratulatory address. He saw many public men, and was introduced to a few. His description of Talleyrand, then French ambassador, is graphic: ’I gazed with much interest on the old shrivelled face, and thought I could see there the lines of deep reflection and lofty talent. His moral physiognomy, however, is a downright blank.’ His letter to his family, giving an account of the presentation, is full of little touches, showing, among other things, how well he appreciated the incidents that are specially interesting to the female mind. Far from desiring to magnify his own importance, he dwells in a humorous way on the defects of his toilet. ’My Geneva gown did not lap so close as I would have liked, so that I was twice as thick as I should be, and it must have been palpable to every eye at the first glance that I was the biggest man there—and that, though I took all care to keep my coat unbuttoned and my gown quite open. However, let not mamma be alarmed, for I made a most reputable appearance, and was treated with the utmost attention.’