1 86 JEROME CARDAN 



farther good fortune would have remained for him to 

 ask for. Another work which he had begun about the 

 same time (1558) was the treatise on Dialectic, illus- 

 trated by geometrical problems and theorems, and like- 

 wise by the well-known logical catch lines Barbara 

 Celarent. During the summer vacation of 1561 he re- 

 turned to Milan, and began a Commentary on the 

 Anatomy of Mundinus, the recognized text-book of the 

 schools up to the appearance of Vesalius. In the pre- 

 face to this work he puts forward a vigorous plea for the 

 extended use of anatomy in reaching a diagnosis. 1 He 

 had likewise on hand the Theonoston, a set of essays on 

 Moral subjects written something in the spirit of Seneca; 

 and, after Gian Battista's death, he wrote the dialogue 

 Tetim, seu de Humanis Consiliis. In the year follow- 

 ing, 1561, a farther sorrow and trouble came upon 

 him by the death of the English youth, William, If he 

 was guilty of neglect in the case of this young man 

 and by his own confession he was he was certainly pro- 

 foundly grieved at his death. In the Argument to the 

 Dialogus de Morte he laments that he ever let the youth 

 leave his house without sending him back to England, 

 and tells how he was cozened by Daldo, the crafty 

 tailor, out of a premium of thirty-one gold crowns, in 

 return for which William was to be taught a trade. 

 " But during the summer, Daldo, who had a little farm in 

 the country, took the youth there and let him join in 

 the village games, and by degrees made him into a vine- 

 dresser. But if at any time it chanced that William's 

 services were also wanted at the tailor's shop, his master 

 would force him to return thereto in the evening (for the 

 farm was two miles distant), and sit sewing all the night. 

 Besides this the boy would go dancing with the villagers, 

 1 Opera,) torn. x. p. 129. 



