Diagram in papers for Commercium Epistolicum
                                Date
                            
                            
                                14 June 1676
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p1v
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 314mm
width (page): 202mm
                            
                        
                            
                            
                            width (page): 202mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Letter from John Collins to Henry Oldenburg (14 June 1676) for transmission to Leibniz (26 July 1676). Collins is here citing James Gregorie's method of approximation by repeated bisection (K, S) of the length of the circular arc HKL.
This volume contains the letters and papers of John Collins (1625-1683), which came into the possession of William Jones (1675-1749), who used them in Commercium Epistolicum, designed to prove Isaac Newton’s priority over Gottfried Wilhelm Leibniz in the invention of fluxions.
The original letters were sealed up at the order of the Royal Society's council (25 October 1714) and stored in an iron chest. Further letters used in the 1722 edition of Commercium Epistolicum must have been added and stored with the original papers. These were ordered on 13 September 1737 to be ‘taken out of the Iron Chest’ and entrusted to Jones, who was asked to paste them into a guard-book in one volume (CMO/2/252, CMO/3/73).
                            
                            
                        
                            
                            
                            This volume contains the letters and papers of John Collins (1625-1683), which came into the possession of William Jones (1675-1749), who used them in Commercium Epistolicum, designed to prove Isaac Newton’s priority over Gottfried Wilhelm Leibniz in the invention of fluxions.
The original letters were sealed up at the order of the Royal Society's council (25 October 1714) and stored in an iron chest. Further letters used in the 1722 edition of Commercium Epistolicum must have been added and stored with the original papers. These were ordered on 13 September 1737 to be ‘taken out of the Iron Chest’ and entrusted to Jones, who was asked to paste them into a guard-book in one volume (CMO/2/252, CMO/3/73).
                                Transcription
                            
                            
                                Endorsed No. 45: p. 126' [reference to the 1722 edition of Commercium Epistolicum].
Transcribed by the Making Visible project
                            
                        
                            
                            
                            Transcribed by the Making Visible project
                                Object history
                            
                            
                                Extract (without the diagram) printed in Commercium Epistolicum D. Johannis Collins, et aliorum De analysi promota (London: Typis Pearsonianis, 1712), p. 45; Commercium epistolicum D. Johannis Collins, et aliorum de analysi promota (London: J. Tonson & J. Watts, 1722), p. 125.
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                John Collins (1625 - 1683, British) , Mathematician, Mathematician
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
Gottfried Wilhelm von Leibniz (1646 - 1716, German) , Natural philosopher
                            
                        
                            
                            
                            Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
Gottfried Wilhelm von Leibniz (1646 - 1716, German) , Natural philosopher
                                Associated place