Referee's report by William George Penney, on a paper 'The propagation of spherical blast' by Gerald Beresford Whitham Sectional committee: Physics Paper reference code: A8 Not recommended for publication: 'The paper is badly written and it is difficult to follow. Furthermore, I believe that it is in error.' Penney writes that the result of the paper 'depends upon a fortuitous cancelling of errors.' Followed by five pages of further comments. [Published in Proceedings A, 1950]. Date received not given. 22 February 1950