Referee's report by Henry Crozier Keating Plummer, on a paper 'The shadow of a straight edge' by E T Hanson Sectional Committee: Mathematics Recommended for publication in the 'Philosophical Transactions of the Royal Society' once reduced in length. 'Macdonald [Hector Munro Macdonald] (whose work is criticised) being dead, and Bateman [Harry Bateman] at a distance, I think the paper should be sent to Prof. Love [Augustus Edward Hough Love]. It is not at all my subject'. Suggests some aspects require further explanation. [Published in the Philosophical Transactions of the Royal Society] Endorsed on verso as received 5 June 1937. [June 1937]