Instrument for collecting the wind
                                Date
                            
                            
                                12 March 1668
                            
                            
                        
                            
                            
                            
                                Creator
                            
                            
                                Unknown, Artist
                            
                            
                        
                            
                            
                            
                                Object type
                            
                            
                            
                        
                            
                            
                            
                                Archive reference number
                            
                            
                            
                        
                            
                            
                            
                                Manuscript page number
                            
                            
                                p294
                            
                            
                        
                            
                            
                            
                                Dimensions
                            
                            
                                height (page): 362mm
width (page): 230mm
                            
                        
                            
                            
                            width (page): 230mm
                                Subject
                            
                            
                            
                        
                            
                            
                            
                                Content object
                            
                            
                            
                        
                            
                            
                            
                                Description
                            
                            
                                Drawing of Robert Hooke's instrument for collecting the wind or for making the slower motions of the air more sensible. Hooke's instrument is a modification of one contrived by William Croone and connects two hollow tin cones at their common point, or vertex, shown at a. Hooke divided the limbs into 32 equal parts, cut with many triangular valves or partitions, leaving a cylindrical hole in the centre of the instrument, fit to contain a small vane or weather-cock. The valves or partitions were attached between the two cones so that air would pass through the small holes into the small central square at a. In addition to collecting wind, Hooke wrote that this instrument could be used for balancing a ball on top of a steeple-turret and for amplifying sound when it was placed on the ear.
                            
                            
                        
                            
                            
                            
                                Object history
                            
                            
                                At the meeting of the Royal Society on 12 March 1668, ‘Mr. Hooke brought in a description of the wind-gathering vessel, but took it home again, promising to return it at the next meeting’ (Birch 2:256). 
On 19 March 1668, ‘A description of an instrument for collecting the wind, or for making the slower motions of the air more sensible, contrived by Mr. Hooke, was read, and ordered to be registered’ (Birch 2:257). Text and references to the figure are printed in Birch 2:258.
                            
                        
                            
                            
                            On 19 March 1668, ‘A description of an instrument for collecting the wind, or for making the slower motions of the air more sensible, contrived by Mr. Hooke, was read, and ordered to be registered’ (Birch 2:257). Text and references to the figure are printed in Birch 2:258.
                                Related fellows
                            
                            
                                Robert Hooke (1635 - 1703, British) , Natural philosopher
William Croone (1633 - 1684, British) , Physician
                            
                        
                            
                            
                            William Croone (1633 - 1684, British) , Physician
                                Associated place