1From Thomas Jefferson to John Barnes, 31 August 1798 (Jefferson Papers)
A most astonishing derangement of our post has rendered it almost useless as the channel of communication. your letter of July 18 . was 25 days on it’s passage to me, that of Aug. 9. was 16 days; so that instead of 8. days as formerly letters are now never received under 16. days from Philadelphia & from that up to 22. and this is not all; for I recieve those letters now by a return post, so...