Copy letter from Robert William Frederick Harrison to Professor Karl Pearson FRS 'With further reference to your inquiries respecting portraits of Erasmus and Charles Darwin, we have here the following:- Erasmus Darwin. -Medallion, in Wedgwood. -Engraving in stipple. Charles Darwin. -Large Photograph by Mrs Cameron, 1868. -Etching by P Rajon, after W W Ouless. -Photograph (small oval). -Bronze Medallion by Allan Wyon. -Plaster cast of the original model for the bronze Darwin Medallion in Westminster Abbey. Samuel Galton. -no portrait, no print. Francis Galton. -Photograph, Maull & Fox.' 23 January 1912