Plan of fortification
                                Date
                            
                            
                                17th century
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                f86 p291
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 192mm
width (page): 296mm
                            
                        
                            
                            
                            width (page): 296mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                This plan of a fortification was sent from Edward Southwell to Robert Southwell. The accompanying text discusses the general rule to fortify the exterior angles of any polygon. It is included amongst the papers collected by Robert Southwell.
                            
                            
                        
                            
                            
                            
                                Transcription
                            
                            
                                Part of an Hexagonall Fort wherein the angle at the Center is 60d. & the angle at the figure 120d.
On back: From Edward Southwell
Transcribed by the Making Visible project
                            
                        
                            
                            
                            On back: From Edward Southwell
Transcribed by the Making Visible project
                                Object history
                            
                            
                                This manuscript was sold at Sotheby's in June 1893 (Phillips sale) and acquired by the Royal Society from a purchaser of that lot. Some of the material is signed by Robin Bacon, who was also Robert Boyle's scribe (see William Poole, 'Sir Robert Southwell's Dialogue on Thomas Burnet's Theory of the Earth: "C & S Discourse of Mr Burnett's Theory of the Earth" (1684): Contexts and an Edition', The Seventeenth Century, 23 (2008), 72-104).
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Robert Southwell (1635 - 1702, British) , Diplomat
Edward Southwell (1671 - 1730, British) , Politician
                            
                        
                            
                            
                            Edward Southwell (1671 - 1730, British) , Politician
                                Associated place