Papers of John Flamsteed, Edmond Halley and James Bradley, Astronomers Royal.
Royal Greenwich Observatory. Papers of John Flamsteed (1646-1719), Edmond Halley (1656-1742) and James Bradley (1693-1762), Astronomers Royal, 1674-1762. From the papers of the Royal Greenwich Observatory, Herstmonceux, Sussex(?). (See XORO/1-135).