| RefNo | RBO/11/24 | 
| AltRefNo | RBO.11.116 | 
| Level | Item | 
| Title | 'William Sanderson's Observations on the Variation of the Needle made in the Baltick Anno 1720 communicated by Captain Soame' | 
| Date | 1720 | 
| Description | Read to the Royal Society on 23 February 1720 | 
| Language | English | 
| Extent | 2 sides | 
| Format | Manuscript | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open |