Copy letter from Robert William Frederick Harrison to L Doncaster, The University, Birmingham 'Dear Sir, Soiree. With reference to the particulars for the Soiree programme, as supplied by the enclosed slip [no enclosure], these are hardly of the nature usually printed in the programme, and intended to serve as a handy guide to the exhibits. Perhaps you may be able to furnish instead some general information relative to sex-inheritance, and the bearing of the exhibit upon it, we might then write the technical details you have sent in on a card, and place it by the side of the exhibit.' 26 April 1909