Letter from Geoffrey Ingram Taylor, to Alfred Charles Glyn Egerton, regarding three papers 'The free streaming of gases in sloping galleries' by E H M Georgeson, 'The diffraction of sound pulses III. Note on an integral occurring in the theory of diffraction by a semi-infinite screen' and 'The diffraction of sound pulses IV. On a paradox in the theory of reflexion' by Frederick Gerard Friedlander Sectional Committee: Physics Finds the paper by E H M Georgeson suitable for publication. Was sent the paper by M F Coward, who wondered if it might be published in a technical journal, but it is of enough general interest for the Proceedings. As for the papers by Frederick Gerard Friedlander, the longer one is of considerable interest, and the shorter one clears up some mathematical points. Discusses an unnamed fourth paper on the subject of rheology, which has unfortunately been withdrawn. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on recto as received 26 November 1941. 14 November 1941