Copy letter from Robert William Frederick Harrison to J H Sinclair, 1 Claremon Garndens, Milngavie, Glasgow 'Dear Sir, Referring to your letter of October 1, the paper you mention, by Dr Stanton, does not seem to have been read here. You might get the correct title and place of reading by writing to Dr Stanton himself, at "The National Physical Laboratory, Bushy House, Teddington, Middlesex.' 3 October 1910