Mr. Dingley return’d to Duxbury: he proposes returning here next Friday, to spend a fortnight. The weather was fine all day. We have had but very few disagreeable dog days.
“15th.,” Founders Online, National Archives, https://founders.archives.gov/documents/Adams/03-02-02-0001-0007-0015. [Original source: The Adams Papers, Diary of John Quincy Adams, vol. 2, March 1786 – December 1788, ed. Robert Taylor J and Marc Friedlaender. Cambridge, MA: Harvard University Press, 1981, p. 77.]