geometry; she likes nothing else."--"One day, being indisposed, the lady could not write; so she went to bed, and sent for me, saying that Voltaire would read his tragedy of 'Mérope.' When he came, she took it into her head that he should change his coat. He objected, on the score that he might catch cold, but at last had the complaisance to send for his valet to get another coat. The servant could not be found. Voltaire thought himself let off. Not at all: she recommenced her persecution till Voltaire got angry. He said a few words in English, and left the room. He was sent for; but replied he was taken ill. Adieu to 'Mérope!'--I was furious. Presently a visitor came, and I said I would go to see Voltaire, and the lady told me to try to bring him back. I found him in excellent humour, quite forgetful of his illness; but it returned when we were sent for, and he was very sullen." Another time she writes: "I pity poor Voltaire, since he and his friend cannot agree. Ah, dear friend! where is there happiness on earth for mortals? We are always deceived by appearances: at a distance, we thought them the happiest people in the world; but, now that I am with them, I discern the truth." Nor was the lady always the peccant person. On one occasion madame de Graffigny writes: "Voltaire is in a state resembling madness. He torments his friend till I am forced to pity her. She has made me her confidant. Voltaire is really mad. One day we were about to act a comedy--every one was ready, when the post came in; he received unpleasant letters: he burst forth into exclamations of anguish, and fell into a species of convulsions. Madame du Châtelet came to me with tears in her eyes, and begged me to put off the play. Yesterday he had an interval of quiet, and we acted. How strange that, with all his genius, he should be so absurd!" Voltaire's disquiet arose from some defamatory attacks made on him by J. B. Rousseau and the abbé Desfontaines. We have seen the history of his intercourse with the former; it was unworthy the poet to revenge himself by libels. Voltaire had exerted his influence to save Desfontaines when accused of a capital offence: he was repaid by the publication of calumnies. The attacks deserved contempt only; but Voltaire could not be brought to this opinion: "I must have reparation," he writes to a friend, "or I die dishonoured. Facts and the most shocking impostures are in question. You know not to what a degree the abbé Desfontaines is the oracle of the provinces. I am told that he is despised in Paris; yet his 'Observations' sell better than any other work. My silence drives him to despair, you say. Ah, how little do you know him! He will take my silence as a mark of submission; and I shall be disgraced by the most despicable man alive, without the smallest act of revenge--without justifying myself."