Observations on theory of light and colours
                                Date
                            
                            
                                20 January 1676
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p276
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 370mm
width (page): 232mm
                            
                        
                            
                            
                            width (page): 232mm
                                Description
                            
                            
                                This drawing shows 'how the colours of the 4 & 18th observations are produced' in Isaac Newton's paper on his theory of light and colours.
The paper was read before the Royal Society on 20 January and 3 February 1676, and was subsequently incorporated into Newton's Opticks (1704).
This diagram is copied from RBO/5/102.
                            
                            
                        
                            
                            
                            The paper was read before the Royal Society on 20 January and 3 February 1676, and was subsequently incorporated into Newton's Opticks (1704).
This diagram is copied from RBO/5/102.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 20 January 1676, ‘There was also read the beginning of Mr. Newton’s discourse, containing such observations, as conduce to further discoveries for completing his theory of light and colours, especially as to the constitution of natural bodies, on which their colours or transparency depend: in which he describes first the principal of his observations, and then considers and makes uses of them. At this time there were read the first fifteen of those observations as follows’ (Birch 3:272). The text and figures are printed in Birch 3:272-79. The remainder of the paper was read on 3 February 1676; the text and figures are printed in Birch 3:280-95.
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                Isaac Newton (1642 - 1727, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Associated place