"I have been told that he possessed the philosopher's stone." "Yes, but I don't believe it." "Do you think it possible?" "I have been working for the last thirty years to convince myself of its impossibility; I have not yet done so, but I am sure that no one who does not believe in the possibility of the great work can be a good chemist." When I left him he begged me to write and tell him what I thought of the great Voltaire, and in, this way our French correspondence began. I possess twenty-two letters from this justly celebrated man; and the last word written six months before, his too, early death. The longer I live the more interest I take in my papers. They are the treasure which attaches me to life and makes death more hateful still. I had been reading at Berne Rousseau's "Heloise," and I asked M. Haller's opinion of it. He told me that he had once read part of it to oblige a friend, and from this part he could judge of the whole. "It is the worst of all romances, because it is the most eloquently expressed. You will see the country of Vaud, but don't expect to see the originals of the brilliant portraits which Jean Jacques painted. He seems to have thought that lying was allowable in a romance, but he has abused the privilege. Petrarch, was a learned man, and told no lies in speaking of his love for Laura, whom he loved as every man loves the woman with whom he is taken; and if Laura had not contented her illustrious lover, he would not have celebrated her." Thus Haller spoke to me of Petrarch, mentioning Rousseau with aversion. He disliked his very eloquence, as he said it owed all its merits to antithesis and paradox. Haller was a learned man of the first class, but his knowledge was not employed for the purpose of ostentation, nor in private life, nor when he was in the company of people who did not care for science. No one knew better than he how to accommodate himself to his company he was friendly with everyone, and never gave offence. But what were his qualifications? It would be much easier to say what he had not than what he had. He had no pride, self-sufficiency, nor tone of superiority--in fact, none of those defects which are often the reproach of the learned and the witty.