Donatien-Marie-Joseph de Vimeur, vicomte de Rochambeau, sends Benjamin Franklin the first part of the second volume of his treatise on woods, following the previous year's delivery of the first volume. He requests Franklin to forward a copy to Passy. Rochambeau expresses his continued respect and unwavering attachment to Franklin.
Benjamin Franklin writes to Benjamin Vaughan discussing his theory that fire is a subtle fluid present everywhere, responsible for sensations of heat and cold and the vibrations of light. He explains that this fluid is attracted to living organisms and various substances, particularly water, which carries it away through evaporation. Franklin shares his philosophical reflections on the nature of fire and heat.
Passy, April 29. 1784. Dear Sir, I received your Favour by Mr Bourdieu, and yesterday another of the 18th. per Mr Hartley, 4 who also gave me the Gazette with…
Benjamin Franklin writes to Mary Stevenson Hewson acknowledging receipt of wheels delayed by ice and expresses satisfaction with them. He promises to inform Mr. Viney of their arrival and encloses a sample of a new work by the author of L’Ami des Enfans, offering to send more if she desires. Franklin closes with warm regards.
Charles Thomson informs Benjamin Franklin about his inquiries into Mr. Marggrander and others, sharing a response from Reuben Haines. He requests Franklin to assist Isaac Norris, a young man traveling in Europe, by providing guidance and introductions to help him gain useful experience for the benefit of his country. Thomson emphasizes Norris's need for advice and Franklin's influential role in mentoring him.
Jean Baptiste Le Roy writes to Benjamin Franklin in 1784 apologizing for missing a visit due to fever and reminding him of a dinner the next day with the Commissioners at his home. He expresses hope that Franklin and his grandson will attend and assures Franklin of warm hospitality. Le Roy closes with affectionate regards and lifelong friendship.
Henry Laurens informs Benjamin Franklin about the King's order to send Mr. Hartley to Paris for exchanging ratifications related to American affairs and expresses skepticism about the British administration's willingness to enact favorable policies on American commerce. Laurens notes internal political resistance, particularly against Pitt, and believes that current difficulties will ultimately strengthen American resolve and prompt necessary actions. He also mentions his plans to leave London despite poor health.
Louis de Boislandry, representing an established commercial firm, writes to Benjamin Franklin in 1784 seeking assistance in promoting direct trade between European producers and American merchants. He requests Franklin's recommendation to reliable American trading houses to facilitate this exchange. The letter reflects ongoing European interest in expanding commerce with the newly independent United States.
Edward Nathaniel Bancroft writes to Benjamin Franklin in 1784, updating him on family health and recent correspondence, including the death of a young sibling from smallpox and the inoculation of others. He mentions his father's imminent voyage to South Carolina and expected return to England. Bancroft conveys warm regards from his family and acquaintances to Franklin and his grandson.
Benjamin Franklin discusses a book on logography sent by John Walter, expressing interest in its method of reducing word pieces through roots and terminations. He shares his own invention for casting letters quickly and offers to teach it to Mr. Johnson, while noting an overlooked Parisian printing improvement from 1776. Franklin critiques the omission and references a pamphlet that claims to halve printing labor and costs across Europe.