| RefNo | NLB/18/614 | 
| AltRefNo | NLB/18 p350 | 
| Level | Item | 
| Title | Copy letter from Robert William Frederick Harrison, to Professor J J Thomson, Fellow of the Royal Society | 
| Date | 11 April 1899 | 
| Description | Has received a paper from Mr Richard Threlfall, "On a Quartz Thread Gravity Balance" which he states Thomson will communicate to the [Royal] Society. Asks for confirmation of this from Thomson. | 
| Extent | 1p | 
| Format | Carbon | 
| PhysicalDescription | Manuscript | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8288 | Thomson; Sir; Joseph John (1856 - 1940); physicist | 1856 - 1940 | 
| NA6235 | Threlfall; Sir; Richard (1861 - 1932); physicist and chemical engineer | 1861 - 1932 |