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.