| RefNo | MC/3/9 | 
| Level | Item | 
| Title | Letter from [William James] Frodsham, Change Alley, to the Council of the Royal Society | 
| Date | 14 February 1839 | 
| Description | Requesting a copy of his paper on Isochronal Vibrations of the Pendulum, presented to the Society.  | 
| Extent | 1p | 
| Format | Manuscript | 
| AccessStatus | Open | 
| RelatedRecord | AP/21/15 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA5905 | Frodsham; William James (1778 - 1850) | 1778 - 1850 |