Letter from Harold Davenport, on a paper 'The geometry of numbers of non convex regions with hexagonal symmetry' by B P Bambah, to D C Martin, Assistant Secretary of the Royal Society Paper reference code: A121 A covering letter for Davenport's report on the paper [see RR/73/163]. Written at 12 Chepstow Mansions, London [England]. [Published in Philosophical Transactions A, 1951]. Endorsed on recto as received 3 November 1950. 2 November 1950