|Alternative reference number||NLB/13 p19|
|Title||Copy letter from Robert William Frederick Harrison, to Arthur Rigg, 42 Old Broad Street, E.C.|
|Date||1 June 1896|
|Description||'The Soirée Committee are much obliged for your offer to exhibit a hydraulic engine on the evening of June 10th but as the programme [is] already full they are obliged to decline it.|
Asst Sec. R.S. [Assistant Secretary, Royal Society]'.