In December 1935, the Manchester Guardian produced a list of men willing to give talks, lectures and demonstrations to clubs and schools. No fee was to be charged for their services, although it was expected that out-of-pocket expenses would be met. Whilst never professing to be a coach, one of the most interesting men on the Guardian list was Henry (Harry) Rottenburg, M.A., M.I.E.E., who was prepared to give talks of the ‘Correlation of science and athletics’. This article touches briefly on his activities