Unpublished letter, on a new system of navigation from [Jean François?] Poulliot to Humphy David [Humphry Davy] Poulliot writes that [Louis Nicholas] Vauquelin assisted him with the attached paper and he requests that a response be sent from the Royal Society and its members to Vauquelin as soon as possible. He writes that the Society is the first to receive his paper. Subject: Physics Written by Poulliot of Pont Audemer in Paris [France]. 23 October 1823