Copy letter from Robert William Frederick Harrison to F H Bales, 4St Albans Place, SW 'Dear Sir, The reports to the Evolution Committee of the Royal Society were published by Messrs Harrison & Sons, 45 St. Martin's Lane, W.C, at the following prices: No. I. 10/-, No. 11. 7/6, No. III. 2/6. These parts can still be purchased by the public.' 7 February 1908