John Jones (1644 or 1645 – 22 August 1709) was a Welsh cleric, inventor and physician.
Jones, whose family was from Pentyrch, Glamorgan, was educated at Jesus College, Oxford, where he matriculated on 28 June 1662.
[3] He became a licentiate of the Royal College of Physicians in 1677, obtaining a licence from Oxford University in the following year to practise medicine and working thereafter in Windsor, Berkshire.
[2][4] His works included a treatise, in Latin, on fevers (De febribus intermittentibus) (1683), and The Mysteries of Opium Revealed (1700), which was described by one commentator as "extraordinary and perfectly unintelligible".
[2][4] He also invented a clock which Robert Plot described as being "moved by the air, equally expressed out of bellows of a cylindrical form, falling into folds in its descent, much after the manner of paper lanterns."