Copy letter from Robert William Frederick Harrison, to the Agent, Bank of England, Western Branch, Burlington Gardens, W. 'Sir, I shall be glad if you will kindly let me have for the purposes of audit, an official certificate of the balance at October 31, standing to the credit of the National Physical Laboratory General A/C. I am, Sir, your faithful servant, Robt [Robert] Harrison Assistant Secretary, R.S. [Royal Society]'. 16 November 1907