it was the appearance of a new star which he observed one night while walking from his laboratory, and which caused him to take up again the beloved pursuit of which he never wearied to his dying day. He discovered the new star, and it may be equally truly said that the star discovered him. But at first the idea of his devoting his time to astronomy was not at all favored or encouraged. After he had spent three years in the Copenhagen University his uncle sent him to Leipzig, where it was intended he should study law. His tutor, who accompanied him, conscientiously tried to make Tycho devote all his attention and time to his legal studies, but his task was almost hopeless. It is impossible to force any one to take an interest in something he does not like. These obstacles only served to strengthen Tycho's resolve. He devoured every book he could find on astronomy, and at night, unknown to his tutor, he would creep out and begin his first intercourse with the stars. A copy of Ptolemy's great work on astronomy, copiously annotated and marked by the schoolboy, is preserved as one of the chief treasures in the library of the University at Prague.
While he was thus engaged a fatal accident befell his uncle. Jorgen Brahe was riding in attendance on the King of Denmark when a bridge collapsed under them. He plunged into the water and attempted to save the King's life. In consequence of this he contracted a chill, which soon afterwards caused his
