Referee's report by Sydney Chapman, on a paper 'Seismic investigations on the Palaeozoic floor of east England' by Edward Crisp Bullard, T F Gaskell, W B Harland and C Kerr-Grant Sectional Committee: Physics Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Suggests the paper be seen by a geologist to comment on the relevant sections. Suggests the authors check the names referenced carefully, as a few erors have been noted. Comments on the tables and formulae. [Published in the Philosophical Transactions of the Royal Society] Endorsed on verso as received 21 October 1939. [October 1939]