University of Keinplatz, and had all the resources of the laboratory to aid him in his profound researches. Professor von Baumgarten was tall and thin, with a hatchet face and steel-grey eyes, which were singularly bright and penetrating. Much thought had furrowed his forehead and contracted his heavy eyebrows, so that he appeared to wear a perpetual frown, which often misled people as to his character, for though austere he was tender-hearted. He was popular among the students, who would gather round him after his lectures and listen eagerly to his strange theories. Often he would call for volunteers from amongst them in order to conduct some experiment, so that eventually there was hardly a lad in the class who had not, at one time or another, been thrown into a mesmeric trance by his Professor. Of all these young devotees of science there was none who equalled in enthusiasm Fritz von Hartmann. It had often seemed strange to his fellow-students that wild, reckless Fritz, as dashing a young fellow as ever hailed from the Rhinelands, should devote the time and trouble which he did in reading up abstruse works and in assisting the Professor in his strange experiments. The fact was, however, that Fritz was a knowing and long-headed fellow. Months before he had lost his heart to young Elise, the blue-eyed, yellow-haired daughter of the lecturer. Although he had succeeded in learning from her lips that she was not indifferent to his suit, he had never dared to announce himself to her family as a formal suitor. Hence he would have found it a difficult matter to see his young lady had he not adopted the expedient of making himself useful to the Professor. By this means he frequently was asked to the old man’s house, where he willingly submitted to be experimented upon in any way as long as there was a chance of his receiving one bright glance from the eyes of Elise or one touch of her little hand. Young Fritz von Hartmann was a handsome lad enough. There were broad acres, too, which would descend to him when his father died. To many he would have seemed an eligible suitor; but Madame frowned upon his presence in the house, and lectured the Professor at times on his allowing such a wolf to prowl around their lamb. To tell the truth, Fritz had an evil name in Keinplatz. Never was there a riot or a duel, or any other mischief afoot, but the young Rhinelander figured as a ringleader in it. No one used more free and violent language, no one drank more, no one played cards more habitually, no one was more idle, save in the one solitary subject. No wonder, then, that the good Frau Professorin gathered her Fräulein under her wing, and resented the attentions of such a _mauvais sujet_. As to the worthy lecturer, he was too much engrossed by his strange studies to form an opinion upon the subject one way or the other.