MM/4/30
Extract of a letter from Col William Congreve, Comptroller of the Royal Laboratory, to the Board of Ordnance on Powder Works
28 May 1801
MM/4/32
Copy of a letter from Col William Congreve to the Board of Ordnance
MM/4/34
Letter from Col William Congreve, Charlton, to Joseph Planta, Secretary, Royal Society
29 June 1801
New Letter Books
Browse the records of some of our collections, which cover all branches of science and date from the 12th century onwards. These include the published works of Fellows of the Royal Society, personal papers of eminent scientists, letters and manuscripts sent to the Society or presented at meetings, and administrative records documenting the Society's activities since our foundation in 1660.