Letter, from Stanislas Lubienietzki to Henry Oldenburg, dated at Hamburg States that he has received observations of the recent comet seen in the constellations of Corvus and Lepus and continues by outlining his work 'Theatrum Cometicum' Lubienietzki (1623-1675), head to the Socinian sect in northern Europe Transcription and translation see 'The correspondence of Henry Oldenburg', ed and trans by A Rupert Hall & Marie Boas Hall, vol 3, p 179 10 July 1666