F Hawking, National Institute for Medical Research, Hampstead to W W C Topley, Medical Research Council, Keppel Street, London Fritz Jacoby is planning to use the technique of tissue culture to investigate the action of sulphonamides on some of the cell types which occur in wounds - suggested that Jacoby forward programme to MRC as co-ordination of such research lies with War Wounds Committee. 11 December 1940