Apparatus for determining the refraction of ice
                                Date
                            
                            
                                11 February 1663
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                After
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p337
                            
                            
                        
                            
                            
                            
                                Material
                            
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 365mm
width (page): 230mm
                            
                        
                            
                            
                            width (page): 230mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                A figure showing a large cylindrical glass full of water with a piece of ice floating in it, and the position of the observer's eye.  This accompanies a paper entitled 'Of the Refraction of Ice' by Robert Hooke. The paper was read at the meeting of the Royal Society on 11 February 1663. 
The original drawing by Hooke is at Cl.P/20/11. This is a simplified copy of RBO/2i/150 or RBO/2ii/113. Other copies can be found at MS/776/346 and RB/1/20/256.
                            
                            
                        
                            
                            
                            The original drawing by Hooke is at Cl.P/20/11. This is a simplified copy of RBO/2i/150 or RBO/2ii/113. Other copies can be found at MS/776/346 and RB/1/20/256.
                                Object history
                            
                            
                                At the meeting of the Royal Society on 11 February 1663, ‘An experiment of the refraction of ice was made by Mr. Hooke and an account of it given by him in writing, which was read, and ordered to be registered. He was desired to try it the next day with a glass of the same figure with the piece used by him in the experiment of this day’ (Birch 1:193). 
Printed in Robert Hooke, Philosophical Experiments and Observations (London, 1726), pp. 24-26, with a much altered figure at p. 25.
                            
                        
                            
                            
                            Printed in Robert Hooke, Philosophical Experiments and Observations (London, 1726), pp. 24-26, with a much altered figure at p. 25.
                                Related fellows
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
                            
                            
                        
                            
                            
                            
                                Associated place