Referee's report by William Henry Bragg, on a paper 'Infra-red absorption spectrum of tetra-deuteroethylene' by G K T Conn and Gordon Brims Black Mcivor Sutherland Sectional Committee: Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. See enclosed report [not present]. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on recto as received 25 March 1939. [March 1939]