Letter from Ernest [Frederick] Relf to the Secretary of the Royal Society, regarding a paper 'The approximate prediction of skin friction and lift' by [Norman Augustus Victor] Piercy, [Joseph Henry] Preston, and [Leslie] G Whitehead Paper reference code: A.82 Acknowledges receipt of letter of 22 June and referee's comments [see RR/W/6/36]. Agrees that the mathematics 'could hardly be described as rigid', but argues this is to be expected in a paper on this subject. Believes the paper's methodology to be 'novel'. Asks for the paper to be withdrawn. [Not published in RS journals but published in The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 26(178), 791–815]. Received 4 July 1938 2 July 1938