Diagram
                                Date
                            
                            
                                late 17th century
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                f107v
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 200mm
width (page): 155mm
                            
                        
                            
                            
                            width (page): 155mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Diagram in an incomplete draft for David Gregory's Catoptricae et dioptricae sphaericae elementa (1695).
                            
                            
                        
                            
                            
                            
                                Object history
                            
                            
                                Printed in David Gregory, Catoptricae et dioptricae sphaericae elementa  (Oxford: e Theatro Sheldoniano, 1695), p. 76: Propositio XIX, Problema XII.
                            
                            
                        
                            
                            
                            
                                Related fellows
                            
                            
                                David Gregory (1659 - 1708, British) , Astronomer, Astronomer