Date is from Besterman.
Part of a large collection of letters from Madame du Châtelet to Charles Augustin de Ferriol, comte d'Argental. Items in the collection are described in separate records; see MA 1565 for more information.
Telling him that she received news from Voltaire and that he is in Brussels and in good health; asking him to write immediately to Voltaire at "Mr. de Reuol, négociant à Bruxelles;" hoping Voltaire remains incognito in Brussels; saying that thereafter he will go to Amsterdam where an edition of his complete works is underway; saying he will also publish a new essay titled Essai sur la philosophie de Newton; imploring him to intercede so Voltaire does not go to Prussia; expressing her mistrust in Frederick-Guillaume I of Prussia; detailing the content of a letter she wrote to Mme. de Richelieu, giving him instructions for writing to her under the assumed name Mme. Chambonin.