Besterman dates as "ce 15 Xbre [octobre 1743]"; references to dates in the letter suggest it was written in October rather than December.
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.
Saying that she received a brief note from Voltaire stating that he spent two weeks in Bareith and is now in Berlin; complaining about Voltaire's lack of consideration towards her; considering returning to Cirey; sending her best to Mme. d'Argental; asking him to console her.