JAN DAVID, a learned Swede, who greatly distinguished himself by his profound researches in Runic, Coptic, Phenician, and ancient Egyptian literature. His researches on the hieroglyphics of the latter are held in much estimation. After having travelled much in the east, he retired to Rome, where he had a pension from the late Duchess of Devonshire, and died there, in the prime of life, in 1819.