Diagram of a prism
                                Date
                            
                            
                                13 April 1672
                            
                            
                        
                            
                            
                            
                                After
                            
                            
                                Ignace-Gaston Pardies (1636 - 1673, French) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p218
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 313mm
width (page): 197mm
                            
                        
                            
                            
                            width (page): 197mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                A figure of a prism in a copy of Isaac Newton's letter to Henry Oldenburg dated 12 April 1672 (EL/N1/38/001), written in reply to Ignace-Gaston Pardies's criticism of his 'experimentum crucis'. Pardies's comments and Newton's reply were read at the meeting of the Royal Society on 18 April 1672, and printed in Philosophical Transactions of the Royal Society, vol. 7, no. 82 (June 1672).
                            
                            
                        
                            
                            
                            
                                Object history
                            
                            
                                At the meeting of the Royal Society on 18 April 1672, ‘Several letters to Mr. Oldenburg were read. [...] A letter from father Pardies the Jesuit, professor of mathematics in the college of Clermont in Paris, dated there April 9, 1672, N.S. containing some objections against Mr. Newton’s theory of light and colours. A letter from Mr. Newton, dated at Cambridge April 13, 1672, containing an answer to the objection of the said Jesuit’ (Birch, 3:43).
Printed in I. Newton, ‘Letter of April 13. 1672. Written to the Publisher, Being an Answer to the Fore-Going Letter of P. Pardies’, Phil. Trans. vol. 7, no. 84 (June 1672), pp. 4091-93.
                            
                        
                            
                            
                            Printed in I. Newton, ‘Letter of April 13. 1672. Written to the Publisher, Being an Answer to the Fore-Going Letter of P. Pardies’, Phil. Trans. vol. 7, no. 84 (June 1672), pp. 4091-93.
                                Related fellows
                            
                            
                                Isaac Newton (1642 - 1727, British) , Natural philosopher
Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                            
                        
                            
                            
                            Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
                                Associated place