ALS: American Philosophical Society
Paris the 4th June 79.
The honour of your company at dinner on thurday next (with Mrs le Comte de Maillebois, de Montigni, le Roy & Sage)1 is desired by the author of the experiments on the igneous fluid.
The honour of Mr … .. your grand-son company is likewise desired. If the time keeps clear; it will be to him an oportunity to see the experiments.2
The dinner on the table at tow o clock at the hotel of M. le Marquis de l Aubespine Rue de Bourgogne F. S. G.
If you have perused the manuscript treatise on the fire, Sir, & will be so good as to deliver it to the bearer with your judgement, it will be esteemed a great favour.3
I am with great regard, Sir Your most humble obedient Servant
Notation: M. Marat 4 June 79.
1. The four members of the commission previously appointed by the Academy to report on Marat’s experiments.
2. As his March 25 letter had indicated, sunny weather was needed for the use of the microscope solaire.
3. His Découvertes sur le Feu …, for which see the headnote to his letter printed under March 13.