1Library Company to Thomas Penn, 29 July 1747 (Franklin Papers)
MS Minutes: Library Company of Philadelphia Franklin informed the Library Company Directors on July 13, 1747, that he had received a letter from the Proprietor Thomas Penn, “with a compleat Electrical Apparatus” as a gift to the Library. John Sober, William Coleman, and Franklin were appointed to acknowledge it. A copy of their letter was spread on the Library Company’s minutes of September...