Paper, concerning a swelling in the throat and a strange substance produced by unknown author The author describes his own affliction of acute pain and swelling in his throat, obstructing his breathing at times, and subsequent 'purpulent matter' and a 'stony substance' discharging from beneath his tongue. He then muses on what the composition of the stony substance could be. Subject: Medicine Read to the Royal Society on 21 March 1705. 8 March 1705