Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr R. G. Canti Informs Dr R. G. Canti that the Royal Society is giving a Conversazione on 6 April as part of the Lister Centenary Celebrations, and asks if Canti would exhibit on 'Living Cells Growing in vitro under the influence of 100mg of Radium Element' at it. 21 February 1927