Unpublished paper and letter, on a new system of navigation by [Jean François?] Poulliot Poulliot proposes a new system of navigation based on the oscillating movement of water, caused both by tides and by wind. He finishes his paper by posing two questions to the Royal Society: whether the oscillating movement of the sea can be considered a driving power and whether it is possible that this power could be applicable to floating bodies. Preceded by a covering letter from Poulliot to Sir Humphry Davy. Subject: Physics Written by Poulliot of Pont Audemer in Paris [France]. October 1823