Memoranda, on a paper 'Supersonic dispersion in gases II. Air containing water vapour' by M Mokhtar and E G Richardson Sectional Committee: Physics Recommended for publication in the 'Proceedings of the Royal Society of London'. Alfred Charles Glyn Egerton suggests Edward Victor Appleton or Edward Neville da Costa Andrade as suitable referees. Also requests consideration as to the potential value of the work to the enemy. Richard Whiddington agrees to either as suitable referees and the possibility of value to the enemy. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 2 January 1940. 1 January 1940