One day, after passing some hours in the laboratory--my uncle being absent at the time--I suddenly felt the necessity of renovating the tissues--<i>i.e.</i>, I was hungry, and was about to rouse up our old French cook, when my uncle, Professor Von Hardwigg, suddenly opened the street door, and came rushing upstairs. Now Professor Hardwigg, my worthy uncle, is by no means a bad sort of man; he is, however, choleric and original. To bear with him means to obey; and scarcely had his heavy feet resounded within our joint domicile than he shouted for me to attend upon him. "Harry--Harry--Harry--" I hastened to obey, but before I could reach his room, jumping three steps at a time, he was stamping his right foot upon the landing. "Harry!" he cried, in a frantic tone, "are you coming up?" Now to tell the truth, at that moment I was far more interested in the question as to what was to constitute our dinner than in any problem of science; to me soup was more interesting than soda, an omelette more tempting than arithmetic, and an artichoke of ten times more value than any amount of asbestos. But my uncle was not a man to be kept waiting; so adjourning therefore all minor questions, I presented myself before him. He was a very learned man. Now most persons in this category supply themselves with information, as peddlers do with goods, for the benefit of others, and lay up stores in order to diffuse them abroad for the benefit of society in general. Not so my excellent uncle, Professor Hardwigg; he studied, he consumed the midnight oil, he pored over heavy tomes, and digested huge quartos and folios in order to keep the knowledge acquired to himself. There was a reason, and it may be regarded as a good one, why my uncle objected to display his learning more than was absolutely necessary: he stammered; and when intent upon explaining the phenomena of the heavens, was apt to find himself at fault, and allude in such a vague way to sun, moon, and stars that few were able to comprehend his meaning. To tell the honest truth, when the right word would not come, it was generally replaced by a very powerful adjective. In connection with the sciences there are many almost unpronounceable names--names very much resembling those of Welsh villages; and my uncle being very fond of using them, his habit of stammering was not thereby improved. In fact, there were periods in his discourse when he would finally give up and swallow his discomfiture--in a glass of water.