Variation of the magnetic needle
                                Date
                            
                            
                                16 May 1666
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                pp2-3
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 315mm
width (page): 387mm
                            
                        
                            
                            
                            width (page): 387mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                An overview map drawn on the basis of the travel journeys of Captain John Davis and Captain William Mynors. Both sets of data cover the route from the equinox, past the Cape of Good Hope, to Bantam on Java (Indonesia). Captain Davis collected his data in 1607, Captain Mynors in 1641. 
The data were extracted, collated and presented on this map to the Fellows of the Royal Society by Mr Henry Phillips, the author of a book on navigation (The Advancement of the Art of Navigation (London, 1657)).
The numbers show the variations of the needle of the compass on the two different voyages to Bantam.
                            
                            
                        
                            
                            
                            The data were extracted, collated and presented on this map to the Fellows of the Royal Society by Mr Henry Phillips, the author of a book on navigation (The Advancement of the Art of Navigation (London, 1657)).
The numbers show the variations of the needle of the compass on the two different voyages to Bantam.
                                Transcription
                            
                            
                                Observations of the Varyation of the Needle in Sayling from the Coast of Brasile by the Cape of Good Hope to Bantam, Extracted out of the Journalls of Captaine John Davis, and Captaine Wm Mynors, by Henry Phillippes
Transcribed by the Making Visible project
                            
                        
                            
                            
                            Transcribed by the Making Visible project
                                Object history
                            
                            
                                At the meeting of the Royal Society on 16 May 1666, ‘a paper of Mr Philips was brought in by Mr Hooke concerning the variations of the magnetic needle, as they had been observed in two East-India voyages’ (Birch 2:89). 
4 June 1666, ‘Mr Powle’s account of Mr Philips’s paper concerning the needle in two East-India voyages was read, and ordered to be filed up together with that paper’ (Birch 2:97).
                            
                        
                            
                            
                            4 June 1666, ‘Mr Powle’s account of Mr Philips’s paper concerning the needle in two East-India voyages was read, and ordered to be filed up together with that paper’ (Birch 2:97).
                                Related fellows
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Associated place