Among the other events which occurred during the reign of King Charles the Second, and which tended to connect unfavorable associations with the recollection of it in the minds of men, was a very extraordinary affair, which is known in history by the name of Titus Oates's Popish Plot. It was the story of a plot, said to have been formed by the Catholics, to put King Charles to death, and place his brother James, who, it will be recollected, was a Catholic, upon the throne in his stead. The story of this plot was told by a man named Titus Oates, and as it was at first generally believed, it occasioned infinite trouble and difficulty. In after times, however, the whole story came to be regarded as the fabrication of Oates, without there being any foundation for it whatever; hence the name of Titus Oates's Popish Plot, by which the affair has always since been designated in history. The circumstances were these: Among his other various accomplishments, King Charles was quite a chemist and philosopher. He had a laboratory where he amused himself with experiments, having, of course, several persons associated with him, and attendant upon him in these researches. Among these was a man named Kirby. Mr. Kirby was an intelligent man, of agreeable manners, and of considerable scientific attainments. Charles devoted, at some periods of his life, a considerable portion of his time to these researches in experimental philosophy, and he took, likewise, an interest in facilitating the progress of others in the same pursuits. There was a small society of philosophers that was accustomed to meet sometimes in Oxford and sometimes in London. The object of this society was to provide apparatus and other facilities for making experiments, and to communicate to each other at their meetings the result of their investigations. The king took this society under his patronage, and made it, as it were, his own. He gave it the name of THE ROYAL SOCIETY, and granted it a charter, by which it was incorporated as a permanent organization, with the most ample powers. This association has since become one of the most celebrated learned societies in the world, and its establishment is one of the very few transactions of King Charles's reign which have been since remembered with pleasure.