I believe I am old, said the Doctor, pushing his straight-backed wooden chair from the table, and turning from his books to look out of his small window. "Yes, I am certainly very old," he said again, rapping absently on the arm of the chair with the pen he held. But the fingers that held the instrument were neither thin nor withered, and there was no trembling in the careless motion of the hand. The flaxen hair, long and tangled, was thick on the massive head, and the broad shoulders were flat and square across. Whatever Dr. Claudius might say of himself, he certainly did not look old. And yet he said to himself that he was, and he probably knew. He said to himself, as he had said every day for many long months, that this was the secret of the difference he felt between his life and the life of his companionssuch companions as he had, between his thoughts and their thoughts, between his ways and their ways. Of late the fancy had gained a stronger hold on his imagination, excited by solitude and an undue consumption of the midnight oil, and as he turned his face to the evening light, an observer, had there been one, might have felt half inclined to agree with him. His face was pale, and the high aquiline nose looked drawn. Moreover, the tangled hair and beard contrasted strangely with his broad, spotless collar, and his dressing-gown of sober black. The long habit of neatness in dress survived any small vanity of personal looks. He rose, and throwing the pen impatiently on the table, went to the little window and looked out. His shoulders overlapped the opening on both sides as he thrust his yellow head out into the evening sunshine, and Master Simpelmayer, the shoemaker down in the street, glanced up, and seeing that the Herr Doctor was taking his evening sniff of the Neckar breeze, laid down his awl and went to "vespers,"a "maas" of cool beer and a "pretzel." For the Herr Doctor was a regular man, and always appeared at his window at the same hour, rain or shine.