This letter will be forwarded by M. d’Ifeffel, the Elector’s chargé d’affaires at London, who will leave Paris this evening. My stay at Paris is very uncertain; I fancy, however, that I shall set out for Munich in the course of three or four weeks. The Elector writes me the kindest and most flattering letters, and I have the satisfaction to think that my stay here has been of some use to him. I avoid most carefully every appearance of interfering in public business, but I now and then find opportunities of putting in a word privately where it is not lost. I fancy the Elector will be well treated in the general arrangement which is about to take place. I thank you for the information you have given me relative to the Royal Institution. It is impossible for me not to feel very deeply interested in its fate. I hope it will prosper; I know it will if you can support and protect it. It would grieve me to see it fall to the ground. My health is much improved since I have been in France. I am, indeed, now quite well. I continue to spend my time here very agreeably. If there should be anything I could do for you here, I hope and trust that you will have no scruples in favouring me with your commands. I am, and shall ever be, my dear Sir Joseph, with unalterable attachment, yours most faithfully, RUMFORD. On August 10, Tuesday, Sir C. Blagden writes: ‘I am on the point of setting out with Count Rumford for Munich. We go first to Mannheim, and I expect to be there next Sunday; afterwards, perhaps, through that tract of country bordering on Switzerland which will be ceded to the Elector as a compensation, so as to reach Munich about the latter end of this month.’ On August 30, from Munich, Sir C. Blagden wrote to Sir Joseph Banks: I wrote to you from Paris on the day of our departure, and left the letter to be sent by post next day. Our journey hither was made during the hottest time of this summer; we had the thermometer in the carriage one day at 93°, and several days within a degree or two of it; but this great heat did not injure our health or materially impair our spirits or appetite.