Letter from Dr C [Constantin] Le Paige, Geometry Professor at the University of Liège, librarian of the Royal Society [of Liège], Rue de Anges 21, Liège, Belgium, to the Royal Society Requesting information about the correspondence of [Renatus] Slusius, some of which is documented in Thomas Birch's 'History of the Royal Society'. The third page contains the request in Latin. [For reply, see related record.] 29 March 1883