evening he read an epistle which the fair lady criticised most wittily." At other times, every hour was given to labour. Voltaire spent the entire day writing: "Does he leave his work for a quarter of an hour during the day," writes his guest, to pay me a visit, he does not sit down, saying that the time lost in talking is frightful--that no moment ought to be wasted, and loss of time is the greatest expense of all. This has gone on for a month. "When we come in to sup he is at his desk; we have half done before he joins us, and he is with difficulty prevented from returning immediately after. He exerts himself to amuse us during the meal; but evidently from sheer politeness: his thoughts are far away." Madame du Châtelet was even more industrious. "She spends her whole nights till five or six in the morning, writing; when she finds herself overcome by sleep, she puts her hands in iced water, and walks about the room to rouse herself. After this, instead of sleeping till the middle of the day, she rises at nine or ten. In short, she only gives two hours to sleep, and never leaves her desk except for coffee and supper." This hard labour was productive of great ennui to their guests, and considerable ill health to themselves; especially to Voltaire, whose constitution was feeble: but the result with him was, his voluminous works; and with her, a degree of scientific knowledge surpassing that attained by almost every other adept of the day. Her essays were full of most abstruse reasoning, and written in a clear and elegant style. Madame de Graffigny had the highest opinion of her understanding. "I have been reading her dissertation on fire; it is written with admirable clearness, precision, and force of argument. I beg Voltaire's pardon, but it is far superior to his. What a woman! How little do I feel beside her! If my body grew as small, I could pass through a key-hole. When women do write, they surpass men; but it requires centuries to form a woman like this." Unfortunately, all this talent was darkened by a vehement and irritable temper. By degrees the truth became manifest, that these sages quarrelled violently. In madame de Graffigny's account, some of these disputes are very whimsical. These are trifles; but they display the inner nature of the man better than more important events, and deserve record. Voltaire was writing the "Age of Louis XIV.," in which he took great pride and pleasure, although from the tyranny then existing in France, the publishing of it would have doomed him to the Bastille. Madame du Châtelet locked up the manuscript, and would not let him finish it. "He is dying to do so," madame de Graffigny writes; "it is the work, of all his, which he prefers. She justifies herself by saying there is little pleasure in writing a book that cannot be printed. I exhort him to go on, and to be satisfied with the immortality he will gain. He said, yesterday, that assuredly he would finish it, but not here. She turns his head with her