| RefNo | RBO/21/13 | 
| AltRefNo | RBO.21.65 | 
| Level | Item | 
| Title | 'The Improvement of the Sand-Glass for the True measuring of Time, in order to find the Longitude' by John Morgan and James Short | 
| Date | 1737 | 
| Description | Read to the Royal Society on 19 January 1737 | 
| Language | English | 
| Extent | 2 sides | 
| Format | Manuscript | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA7447 | Short; James (1710 - 1768); instrument maker; mathematician | 1710 - 1768 |