To his daughter he wrote, June 18, from Munich:
I left Paris the 9th of June, and arrived here the 16th. My stay here is uncertain, for many things are yet wanting that are indispensably necessary for the success of such an establishment as the Academy of Arts and Sciences.[11] I continue to pursue my philosophical researches, and that will ever be the most pleasing occupation I can have.
On September 17 he was again in Paris.
He wrote to his daughter:
Rue d’Anjou, No. 39, Paris, October 25, 1805.
You will have intelligence by the papers of the events that have lately taken place in Germany. Foreseeing the storm, I left Munich the day before the Elector left it. I have brought Aichner and his whole family, not being willing to leave them behind. I succeeded in so winding up my affairs in Bavaria as in the future to be able to live where I please. I shall, of course, go from time to time to pay my respects to the Elector, for he has ever treated me with too much respect for me to be negligent on that account towards him.
I have informed you before of the arrangements Madame Lavoisier and I had made in case of our marriage, which, in fact, took place yesterday.
I have the best-founded hopes of passing my days in peace and quiet in this paradise of a place, made what it is by me—my money, skill, and directions. In short, it is all but a paradise, removed from the noise and bustle of the street, facing full to the south, in the midst of a beautiful garden of more than two acres, well planted with trees and shrubbery. The entrance from the street is through an iron gate, by a beautiful winding avenue, well planted, and the porter’s lodge is by the side of this gate; a great bell to be rung in case of ceremonious visits.
The daughter’s comment on this letter is: ‘It seems there had been an acquaintance between these parties of four years before marriage. It might be thought a long space of time enough for perfect acquaintance. But, ah Providence! thy ways are past finding out.’
Dr. Ellis, the biographer of Rumford, says:
An interval, though a very brief one, of cheerfulness and satisfaction, was enjoyed by the Count after his marriage. There were but two letters to his daughter recognising this state of content and pleasant anticipation. He informed her that he left Munich under the pleasantest relations with the Bavarian sovereign and his friends at that Court. He had received a letter from Maximilian, congratulating him on his marriage and approving of his settling himself in France, and at the same time adding four thousand florins a year to his pay.
One letter was dated from Paris, December 20, 1805, two months after his marriage: