Letter from Charles Galton Darwin to Alfred C Egerton, Department of Scientific and Industrial Research, National Physical Laboratory, Teddington, Middlesex Has referred [H L Penfold's] paper [on Universal System of weights and measures] to the metrologists, and encloses detailed comments, which they made when they received it last year [not enclosed]. Think the straight answer must be that if any adjustments are to be made of British measures the upset would be so great, that they might just as well go right over to the metric system. 25 April 1946