Copy letter from Robert William Frederick Harrison, to Messrs Smith, Son & Oakley, 10 Waterloo Place, Pall Mall, S.W. 'I find that through a clerical error, a cheque we sent you on May 28th. for £8-18-6, in lieu of £8-16-6, that amount of your Mablethorpe account rendered. Your receipt is for £8-16-6 only, and I should be greatly obliged if you would, for the satisfaction of my auditors, refund me the 2/- paid in excess. I am, Yours faithfully, Robt Harrison Asst. Sec. R. S. [Assistant Secretary, Royal Society]'. 10 November 1896