When the good Professor finally fulfilled his promise, and published an account of what occurred, the narrative was so extraordinary that it was received with general incredulity. The tone of some of the papers was so offensive in their comments upon the matter that the angry savant declared that he would never open his mouth again or refer to the subject in any way—a promise which he has faithfully kept. This narrative has been compiled, however, from the most authentic sources, and the events cited in it may be relied upon as substantially correct.
It happened, then, that shortly after the time when Professor von Baumgarten conceived the idea of the above-mentioned experiment, he was walking thoughtfully homewards after a long day in the laboratory, when he met a crowd of roystering students who had just streamed out from a beer-house. At the head of them, half-intoxicated and very noisy, was young Fritz von Hartmann. The Professor would have passed them, but his pupil ran across and intercepted him.
"Heh! my worthy master," he said, taking the old man by the sleeve, and leading him down the road with him. "There is something that I have to say to you, and it is easier for me to say it now, when the good beer is humming in my head, than at another time."
"What is it, then, Fritz?" the physiologist asked, looking at him in mild surprise.
"I hear, mein herr, that you are about to do some wondrous experiment in which you hope to take a
