Letter from William Mitchinson Hicks, on a paper 'The specific heats of air and carbon dioxide at atmospheric pressure by the continuous electric method at 20 degrees celsius and 100 degrees celsius' by W F G Swann Explains that Swann cannot modify his paper according to the referee's instructions, as it would render the paper 'useless' to take these passages out. [Published in Proceedings of the Royal Society A, 1909]. Letter received 17 June 1909. 16 June 1909