| Description | Replies to M. Cl. Roux's letter, informing him that the Royal Society does have the manuscript 'December 17, 1778. Igneous Fluid. Count D'Aroy', which Roux can have a copy of if he applies through the official channels. Also informs Roux that there is no record of any letter from Jean-Paul Marat in the archives, and that if he wishes to know more about the Diploma from St Andrews University it is best to write directly to them. |